81903550

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{997}}^1$

素因数の和:1093

約数の個数: 48

約数和(自身を含む): 160382592

約数和(自身を除く): 78479042

約数列:

[1, 2, 5, 10, 25, 31, 50, 53, 62, 106, 155, 265, 310, 530, 775, 997, 1325, 1550, 1643, 1994, 2650, 3286, 4985, 8215, 9970, 16430, 24925, 30907, 41075, 49850, 52841, 61814, 82150, 105682, 154535, 264205, 309070, 528410, 772675, 1321025, 1545350, 1638071, 2642050, 3276142, 8190355, 16380710, 40951775, 81903550]

約数ペア:

[(1, 81903550), (2, 40951775), (5, 16380710), (10, 8190355), (25, 3276142), (31, 2642050), (50, 1638071), (53, 1545350), (62, 1321025), (106, 772675), (155, 528410), (265, 309070), (310, 264205), (530, 154535), (775, 105682), (997, 82150), (1325, 61814), (1550, 52841), (1643, 49850), (1994, 41075), (2650, 30907), (3286, 24925), (4985, 16430), (8215, 9970)]