39997575

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 76602240

約数和(自身を除く): 36604665

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 59, 69, 75, 115, 131, 177, 207, 225, 295, 345, 393, 531, 575, 655, 885, 1035, 1179, 1357, 1475, 1725, 1965, 2655, 3013, 3275, 4071, 4425, 5175, 5895, 6785, 7729, 9039, 9825, 12213, 13275, 15065, 20355, 23187, 27117, 29475, 33925, 38645, 45195, 61065, 69561, 75325, 101775, 115935, 135585, 177767, 193225, 225975, 305325, 347805, 533301, 579675, 677925, 888835, 1599903, 1739025, 2666505, 4444175, 7999515, 13332525, 39997575]

約数ペア:

[(1, 39997575), (3, 13332525), (5, 7999515), (9, 4444175), (15, 2666505), (23, 1739025), (25, 1599903), (45, 888835), (59, 677925), (69, 579675), (75, 533301), (115, 347805), (131, 305325), (177, 225975), (207, 193225), (225, 177767), (295, 135585), (345, 115935), (393, 101775), (531, 75325), (575, 69561), (655, 61065), (885, 45195), (1035, 38645), (1179, 33925), (1357, 29475), (1475, 27117), (1725, 23187), (1965, 20355), (2655, 15065), (3013, 13275), (3275, 12213), (4071, 9825), (4425, 9039), (5175, 7729), (5895, 6785)]