204912890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2713}}^1$

素因数の和:2823

約数の個数: 64

約数和(自身を含む): 459599616

約数和(自身を除く): 254686726

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 83, 91, 130, 166, 182, 415, 455, 581, 830, 910, 1079, 1162, 2158, 2713, 2905, 5395, 5426, 5810, 7553, 10790, 13565, 15106, 18991, 27130, 35269, 37765, 37982, 70538, 75530, 94955, 176345, 189910, 225179, 246883, 352690, 450358, 493766, 1125895, 1234415, 1576253, 2251790, 2468830, 2927327, 3152506, 5854654, 7881265, 14636635, 15762530, 20491289, 29273270, 40982578, 102456445, 204912890]

約数ペア:

[(1, 204912890), (2, 102456445), (5, 40982578), (7, 29273270), (10, 20491289), (13, 15762530), (14, 14636635), (26, 7881265), (35, 5854654), (65, 3152506), (70, 2927327), (83, 2468830), (91, 2251790), (130, 1576253), (166, 1234415), (182, 1125895), (415, 493766), (455, 450358), (581, 352690), (830, 246883), (910, 225179), (1079, 189910), (1162, 176345), (2158, 94955), (2713, 75530), (2905, 70538), (5395, 37982), (5426, 37765), (5810, 35269), (7553, 27130), (10790, 18991), (13565, 15106)]