161931525

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:483

約数の個数: 72

約数和(自身を含む): 314667360

約数和(自身を除く): 152735835

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 139, 147, 175, 245, 317, 417, 525, 695, 735, 951, 973, 1225, 1585, 2085, 2219, 2919, 3475, 3675, 4755, 4865, 6657, 6811, 7925, 10425, 11095, 14595, 15533, 20433, 23775, 24325, 33285, 34055, 44063, 46599, 55475, 72975, 77665, 102165, 132189, 166425, 170275, 220315, 232995, 308441, 388325, 510825, 660945, 925323, 1101575, 1164975, 1542205, 2159087, 3304725, 4626615, 6477261, 7711025, 10795435, 23133075, 32386305, 53977175, 161931525]

約数ペア:

[(1, 161931525), (3, 53977175), (5, 32386305), (7, 23133075), (15, 10795435), (21, 7711025), (25, 6477261), (35, 4626615), (49, 3304725), (75, 2159087), (105, 1542205), (139, 1164975), (147, 1101575), (175, 925323), (245, 660945), (317, 510825), (417, 388325), (525, 308441), (695, 232995), (735, 220315), (951, 170275), (973, 166425), (1225, 132189), (1585, 102165), (2085, 77665), (2219, 72975), (2919, 55475), (3475, 46599), (3675, 44063), (4755, 34055), (4865, 33285), (6657, 24325), (6811, 23775), (7925, 20433), (10425, 15533), (11095, 14595)]