201945990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{523}}^1$

素因数の和:805

約数の個数: 64

約数和(自身を含む): 495896832

約数和(自身を除く): 293950842

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 211, 305, 366, 422, 523, 610, 633, 915, 1046, 1055, 1266, 1569, 1830, 2110, 2615, 3138, 3165, 5230, 6330, 7845, 12871, 15690, 25742, 31903, 38613, 63806, 64355, 77226, 95709, 110353, 128710, 159515, 191418, 193065, 220706, 319030, 331059, 386130, 478545, 551765, 662118, 957090, 1103530, 1655295, 3310590, 6731533, 13463066, 20194599, 33657665, 40389198, 67315330, 100972995, 201945990]

約数ペア:

[(1, 201945990), (2, 100972995), (3, 67315330), (5, 40389198), (6, 33657665), (10, 20194599), (15, 13463066), (30, 6731533), (61, 3310590), (122, 1655295), (183, 1103530), (211, 957090), (305, 662118), (366, 551765), (422, 478545), (523, 386130), (610, 331059), (633, 319030), (915, 220706), (1046, 193065), (1055, 191418), (1266, 159515), (1569, 128710), (1830, 110353), (2110, 95709), (2615, 77226), (3138, 64355), (3165, 63806), (5230, 38613), (6330, 31903), (7845, 25742), (12871, 15690)]