1868491520

素因数分解:

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

素因数の和:128

約数の個数: 216

約数和(自身を含む): 5379873408

約数和(自身を除く): 3511381888

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, 392, 434, 448, 490, 496, 560, 620, 640, 784, 868, 896, 961, 980, 992, 1085, 1120, 1240, 1280, 1519, 1568, 1736, 1792, 1922, 1960, 1984, 2170, 2240, 2480, 3038, 3136, 3472, 3844, 3920, 3968, 4340, 4480, 4805, 4960, 6076, 6272, 6727, 6944, 7595, 7688, 7840, 7936, 8680, 8960, 9610, 9920, 12152, 12544, 13454, 13888, 15190, 15376, 15680, 17360, 19220, 19840, 24304, 26908, 27776, 29791, 30380, 30752, 31360, 33635, 34720, 38440, 39680, 47089, 48608, 53816, 55552, 59582, 60760, 61504, 62720, 67270, 69440, 76880, 94178, 97216, 107632, 119164, 121520, 123008, 134540, 138880, 148955, 153760, 188356, 194432, 208537, 215264, 235445, 238328, 243040, 246016, 269080, 277760, 297910, 307520, 376712, 388864, 417074, 430528, 470890, 476656, 486080, 538160, 595820, 615040, 753424, 834148, 861056, 941780, 953312, 972160, 1042685, 1076320, 1191640, 1230080, 1459759, 1506848, 1668296, 1722112, 1883560, 1906624, 1944320, 2085370, 2152640, 2383280, 2919518, 3013696, 3336592, 3767120, 3813248, 4170740, 4305280, 4766560, 5839036, 6027392, 6673184, 7298795, 7534240, 7626496, 8341480, 8610560, 9533120, 11678072, 12054784, 13346368, 14597590, 15068480, 16682960, 19066240, 23356144, 26692736, 29195180, 30136960, 33365920, 38132480, 46712288, 53385472, 58390360, 60273920, 66731840, 93424576, 116780720, 133463680, 186849152, 233561440, 266927360, 373698304, 467122880, 934245760, 1868491520]

約数ペア:

[(1, 1868491520), (2, 934245760), (4, 467122880), (5, 373698304), (7, 266927360), (8, 233561440), (10, 186849152), (14, 133463680), (16, 116780720), (20, 93424576), (28, 66731840), (31, 60273920), (32, 58390360), (35, 53385472), (40, 46712288), (49, 38132480), (56, 33365920), (62, 30136960), (64, 29195180), (70, 26692736), (80, 23356144), (98, 19066240), (112, 16682960), (124, 15068480), (128, 14597590), (140, 13346368), (155, 12054784), (160, 11678072), (196, 9533120), (217, 8610560), (224, 8341480), (245, 7626496), (248, 7534240), (256, 7298795), (280, 6673184), (310, 6027392), (320, 5839036), (392, 4766560), (434, 4305280), (448, 4170740), (490, 3813248), (496, 3767120), (560, 3336592), (620, 3013696), (640, 2919518), (784, 2383280), (868, 2152640), (896, 2085370), (961, 1944320), (980, 1906624), (992, 1883560), (1085, 1722112), (1120, 1668296), (1240, 1506848), (1280, 1459759), (1519, 1230080), (1568, 1191640), (1736, 1076320), (1792, 1042685), (1922, 972160), (1960, 953312), (1984, 941780), (2170, 861056), (2240, 834148), (2480, 753424), (3038, 615040), (3136, 595820), (3472, 538160), (3844, 486080), (3920, 476656), (3968, 470890), (4340, 430528), (4480, 417074), (4805, 388864), (4960, 376712), (6076, 307520), (6272, 297910), (6727, 277760), (6944, 269080), (7595, 246016), (7688, 243040), (7840, 238328), (7936, 235445), (8680, 215264), (8960, 208537), (9610, 194432), (9920, 188356), (12152, 153760), (12544, 148955), (13454, 138880), (13888, 134540), (15190, 123008), (15376, 121520), (15680, 119164), (17360, 107632), (19220, 97216), (19840, 94178), (24304, 76880), (26908, 69440), (27776, 67270), (29791, 62720), (30380, 61504), (30752, 60760), (31360, 59582), (33635, 55552), (34720, 53816), (38440, 48608), (39680, 47089)]