1918009680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257797}}^1$

素因数の和:257844

約数の個数: 80

約数和(自身を含む): 6137654784

約数和(自身を除く): 4219645104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 257797, 515594, 773391, 1031188, 1288985, 1546782, 2062376, 2577970, 3093564, 3866955, 4124752, 5155940, 6187128, 7733910, 7991707, 10311880, 12374256, 15467820, 15983414, 20623760, 23975121, 30935640, 31966828, 39958535, 47950242, 61871280, 63933656, 79917070, 95900484, 119875605, 127867312, 159834140, 191800968, 239751210, 319668280, 383601936, 479502420, 639336560, 959004840, 1918009680]

約数ペア:

[(1, 1918009680), (2, 959004840), (3, 639336560), (4, 479502420), (5, 383601936), (6, 319668280), (8, 239751210), (10, 191800968), (12, 159834140), (15, 127867312), (16, 119875605), (20, 95900484), (24, 79917070), (30, 63933656), (31, 61871280), (40, 47950242), (48, 39958535), (60, 31966828), (62, 30935640), (80, 23975121), (93, 20623760), (120, 15983414), (124, 15467820), (155, 12374256), (186, 10311880), (240, 7991707), (248, 7733910), (310, 6187128), (372, 5155940), (465, 4124752), (496, 3866955), (620, 3093564), (744, 2577970), (930, 2062376), (1240, 1546782), (1488, 1288985), (1860, 1031188), (2480, 773391), (3720, 515594), (7440, 257797)]