1247856640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3931}}^1$

素因数の和:3989

約数の個数: 96

約数和(自身を含む): 3091495680

約数和(自身を除く): 1843639040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1984, 2048, 2480, 2560, 3931, 3968, 4960, 5120, 7862, 7936, 9920, 10240, 15724, 15872, 19655, 19840, 31448, 31744, 39310, 39680, 62896, 63488, 78620, 79360, 121861, 125792, 157240, 158720, 243722, 251584, 314480, 317440, 487444, 503168, 609305, 628960, 974888, 1006336, 1218610, 1257920, 1949776, 2012672, 2437220, 2515840, 3899552, 4025344, 4874440, 5031680, 7799104, 8050688, 9748880, 10063360, 15598208, 19497760, 20126720, 31196416, 38995520, 40253440, 62392832, 77991040, 124785664, 155982080, 249571328, 311964160, 623928320, 1247856640]

約数ペア:

[(1, 1247856640), (2, 623928320), (4, 311964160), (5, 249571328), (8, 155982080), (10, 124785664), (16, 77991040), (20, 62392832), (31, 40253440), (32, 38995520), (40, 31196416), (62, 20126720), (64, 19497760), (80, 15598208), (124, 10063360), (128, 9748880), (155, 8050688), (160, 7799104), (248, 5031680), (256, 4874440), (310, 4025344), (320, 3899552), (496, 2515840), (512, 2437220), (620, 2012672), (640, 1949776), (992, 1257920), (1024, 1218610), (1240, 1006336), (1280, 974888), (1984, 628960), (2048, 609305), (2480, 503168), (2560, 487444), (3931, 317440), (3968, 314480), (4960, 251584), (5120, 243722), (7862, 158720), (7936, 157240), (9920, 125792), (10240, 121861), (15724, 79360), (15872, 78620), (19655, 63488), (19840, 62896), (31448, 39680), (31744, 39310)]