18900200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^3\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 96

約数和(自身を含む): 49014720

約数和(自身を除く): 30114520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 71, 88, 100, 110, 121, 142, 200, 220, 242, 275, 284, 355, 440, 484, 550, 568, 605, 710, 781, 968, 1100, 1210, 1331, 1420, 1562, 1775, 2200, 2420, 2662, 2840, 3025, 3124, 3550, 3905, 4840, 5324, 6050, 6248, 6655, 7100, 7810, 8591, 10648, 12100, 13310, 14200, 15620, 17182, 19525, 24200, 26620, 31240, 33275, 34364, 39050, 42955, 53240, 66550, 68728, 78100, 85910, 94501, 133100, 156200, 171820, 189002, 214775, 266200, 343640, 378004, 429550, 472505, 756008, 859100, 945010, 1718200, 1890020, 2362525, 3780040, 4725050, 9450100, 18900200]

約数ペア:

[(1, 18900200), (2, 9450100), (4, 4725050), (5, 3780040), (8, 2362525), (10, 1890020), (11, 1718200), (20, 945010), (22, 859100), (25, 756008), (40, 472505), (44, 429550), (50, 378004), (55, 343640), (71, 266200), (88, 214775), (100, 189002), (110, 171820), (121, 156200), (142, 133100), (200, 94501), (220, 85910), (242, 78100), (275, 68728), (284, 66550), (355, 53240), (440, 42955), (484, 39050), (550, 34364), (568, 33275), (605, 31240), (710, 26620), (781, 24200), (968, 19525), (1100, 17182), (1210, 15620), (1331, 14200), (1420, 13310), (1562, 12100), (1775, 10648), (2200, 8591), (2420, 7810), (2662, 7100), (2840, 6655), (3025, 6248), (3124, 6050), (3550, 5324), (3905, 4840)]