20177325

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 43175808

約数和(自身を除く): 22998483

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 25, 35, 45, 63, 69, 75, 105, 115, 161, 175, 207, 225, 315, 345, 483, 525, 557, 575, 805, 1035, 1449, 1575, 1671, 1725, 2415, 2785, 3899, 4025, 5013, 5175, 7245, 8355, 11697, 12075, 12811, 13925, 19495, 25065, 35091, 36225, 38433, 41775, 58485, 64055, 89677, 97475, 115299, 125325, 175455, 192165, 269031, 292425, 320275, 448385, 576495, 807093, 877275, 960825, 1345155, 2241925, 2882475, 4035465, 6725775, 20177325]

約数ペア:

[(1, 20177325), (3, 6725775), (5, 4035465), (7, 2882475), (9, 2241925), (15, 1345155), (21, 960825), (23, 877275), (25, 807093), (35, 576495), (45, 448385), (63, 320275), (69, 292425), (75, 269031), (105, 192165), (115, 175455), (161, 125325), (175, 115299), (207, 97475), (225, 89677), (315, 64055), (345, 58485), (483, 41775), (525, 38433), (557, 36225), (575, 35091), (805, 25065), (1035, 19495), (1449, 13925), (1575, 12811), (1671, 12075), (1725, 11697), (2415, 8355), (2785, 7245), (3899, 5175), (4025, 5013)]