421917440

素因数分解:

$2^8\times 5^1\times 7^3\times {\mathrm{31}}^2$

素因数の和:104

約数の個数: 216

約数和(自身を含む): 1217815200

約数和(自身を除く): 795897760

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, 245, 248, 256, 280, 310, 320, 343, 392, 434, 448, 490, 496, 560, 620, 640, 686, 784, 868, 896, 961, 980, 992, 1085, 1120, 1240, 1280, 1372, 1519, 1568, 1715, 1736, 1792, 1922, 1960, 1984, 2170, 2240, 2480, 2744, 3038, 3136, 3430, 3472, 3844, 3920, 3968, 4340, 4480, 4805, 4960, 5488, 6076, 6272, 6727, 6860, 6944, 7595, 7688, 7840, 7936, 8680, 8960, 9610, 9920, 10633, 10976, 12152, 12544, 13454, 13720, 13888, 15190, 15376, 15680, 17360, 19220, 19840, 21266, 21952, 24304, 26908, 27440, 27776, 30380, 30752, 31360, 33635, 34720, 38440, 39680, 42532, 43904, 47089, 48608, 53165, 53816, 54880, 55552, 60760, 61504, 62720, 67270, 69440, 76880, 85064, 87808, 94178, 97216, 106330, 107632, 109760, 121520, 123008, 134540, 138880, 153760, 170128, 188356, 194432, 212660, 215264, 219520, 235445, 243040, 246016, 269080, 277760, 307520, 329623, 340256, 376712, 388864, 425320, 430528, 439040, 470890, 486080, 538160, 615040, 659246, 680512, 753424, 850640, 861056, 941780, 972160, 1076320, 1230080, 1318492, 1361024, 1506848, 1648115, 1701280, 1722112, 1883560, 1944320, 2152640, 2636984, 2722048, 3013696, 3296230, 3402560, 3767120, 4305280, 5273968, 6027392, 6592460, 6805120, 7534240, 8610560, 10547936, 12054784, 13184920, 13610240, 15068480, 21095872, 26369840, 30136960, 42191744, 52739680, 60273920, 84383488, 105479360, 210958720, 421917440]

約数ペア:

[(1, 421917440), (2, 210958720), (4, 105479360), (5, 84383488), (7, 60273920), (8, 52739680), (10, 42191744), (14, 30136960), (16, 26369840), (20, 21095872), (28, 15068480), (31, 13610240), (32, 13184920), (35, 12054784), (40, 10547936), (49, 8610560), (56, 7534240), (62, 6805120), (64, 6592460), (70, 6027392), (80, 5273968), (98, 4305280), (112, 3767120), (124, 3402560), (128, 3296230), (140, 3013696), (155, 2722048), (160, 2636984), (196, 2152640), (217, 1944320), (224, 1883560), (245, 1722112), (248, 1701280), (256, 1648115), (280, 1506848), (310, 1361024), (320, 1318492), (343, 1230080), (392, 1076320), (434, 972160), (448, 941780), (490, 861056), (496, 850640), (560, 753424), (620, 680512), (640, 659246), (686, 615040), (784, 538160), (868, 486080), (896, 470890), (961, 439040), (980, 430528), (992, 425320), (1085, 388864), (1120, 376712), (1240, 340256), (1280, 329623), (1372, 307520), (1519, 277760), (1568, 269080), (1715, 246016), (1736, 243040), (1792, 235445), (1922, 219520), (1960, 215264), (1984, 212660), (2170, 194432), (2240, 188356), (2480, 170128), (2744, 153760), (3038, 138880), (3136, 134540), (3430, 123008), (3472, 121520), (3844, 109760), (3920, 107632), (3968, 106330), (4340, 97216), (4480, 94178), (4805, 87808), (4960, 85064), (5488, 76880), (6076, 69440), (6272, 67270), (6727, 62720), (6860, 61504), (6944, 60760), (7595, 55552), (7688, 54880), (7840, 53816), (7936, 53165), (8680, 48608), (8960, 47089), (9610, 43904), (9920, 42532), (10633, 39680), (10976, 38440), (12152, 34720), (12544, 33635), (13454, 31360), (13720, 30752), (13888, 30380), (15190, 27776), (15376, 27440), (15680, 26908), (17360, 24304), (19220, 21952), (19840, 21266)]