890498560

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:297

約数の個数: 240

約数和(自身を含む): 2575013760

約数和(自身を除く): 1684515200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 128, 140, 155, 160, 196, 217, 224, 229, 245, 248, 256, 280, 310, 320, 392, 434, 448, 458, 490, 496, 512, 560, 620, 640, 784, 868, 896, 916, 980, 992, 1085, 1120, 1145, 1240, 1280, 1519, 1568, 1603, 1736, 1792, 1832, 1960, 1984, 2170, 2240, 2290, 2480, 2560, 3038, 3136, 3206, 3472, 3584, 3664, 3920, 3968, 4340, 4480, 4580, 4960, 6076, 6272, 6412, 6944, 7099, 7328, 7595, 7840, 7936, 8015, 8680, 8960, 9160, 9920, 11221, 12152, 12544, 12824, 13888, 14198, 14656, 15190, 15680, 15872, 16030, 17360, 17920, 18320, 19840, 22442, 24304, 25088, 25648, 27776, 28396, 29312, 30380, 31360, 32060, 34720, 35495, 36640, 39680, 44884, 48608, 49693, 51296, 55552, 56105, 56792, 58624, 60760, 62720, 64120, 69440, 70990, 73280, 79360, 89768, 97216, 99386, 102592, 111104, 112210, 113584, 117248, 121520, 125440, 128240, 138880, 141980, 146560, 179536, 194432, 198772, 205184, 224420, 227168, 243040, 248465, 256480, 277760, 283960, 293120, 347851, 359072, 388864, 397544, 410368, 448840, 454336, 486080, 496930, 512960, 555520, 567920, 586240, 695702, 718144, 777728, 795088, 820736, 897680, 908672, 972160, 993860, 1025920, 1135840, 1391404, 1436288, 1590176, 1739255, 1795360, 1817344, 1944320, 1987720, 2051840, 2271680, 2782808, 2872576, 3180352, 3478510, 3590720, 3634688, 3888640, 3975440, 4103680, 4543360, 5565616, 5745152, 6360704, 6957020, 7181440, 7950880, 9086720, 11131232, 12721408, 13914040, 14362880, 15901760, 18173440, 22262464, 25442816, 27828080, 28725760, 31803520, 44524928, 55656160, 63607040, 89049856, 111312320, 127214080, 178099712, 222624640, 445249280, 890498560]

約数ペア:

[(1, 890498560), (2, 445249280), (4, 222624640), (5, 178099712), (7, 127214080), (8, 111312320), (10, 89049856), (14, 63607040), (16, 55656160), (20, 44524928), (28, 31803520), (31, 28725760), (32, 27828080), (35, 25442816), (40, 22262464), (49, 18173440), (56, 15901760), (62, 14362880), (64, 13914040), (70, 12721408), (80, 11131232), (98, 9086720), (112, 7950880), (124, 7181440), (128, 6957020), (140, 6360704), (155, 5745152), (160, 5565616), (196, 4543360), (217, 4103680), (224, 3975440), (229, 3888640), (245, 3634688), (248, 3590720), (256, 3478510), (280, 3180352), (310, 2872576), (320, 2782808), (392, 2271680), (434, 2051840), (448, 1987720), (458, 1944320), (490, 1817344), (496, 1795360), (512, 1739255), (560, 1590176), (620, 1436288), (640, 1391404), (784, 1135840), (868, 1025920), (896, 993860), (916, 972160), (980, 908672), (992, 897680), (1085, 820736), (1120, 795088), (1145, 777728), (1240, 718144), (1280, 695702), (1519, 586240), (1568, 567920), (1603, 555520), (1736, 512960), (1792, 496930), (1832, 486080), (1960, 454336), (1984, 448840), (2170, 410368), (2240, 397544), (2290, 388864), (2480, 359072), (2560, 347851), (3038, 293120), (3136, 283960), (3206, 277760), (3472, 256480), (3584, 248465), (3664, 243040), (3920, 227168), (3968, 224420), (4340, 205184), (4480, 198772), (4580, 194432), (4960, 179536), (6076, 146560), (6272, 141980), (6412, 138880), (6944, 128240), (7099, 125440), (7328, 121520), (7595, 117248), (7840, 113584), (7936, 112210), (8015, 111104), (8680, 102592), (8960, 99386), (9160, 97216), (9920, 89768), (11221, 79360), (12152, 73280), (12544, 70990), (12824, 69440), (13888, 64120), (14198, 62720), (14656, 60760), (15190, 58624), (15680, 56792), (15872, 56105), (16030, 55552), (17360, 51296), (17920, 49693), (18320, 48608), (19840, 44884), (22442, 39680), (24304, 36640), (25088, 35495), (25648, 34720), (27776, 32060), (28396, 31360), (29312, 30380)]