71397820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 172872000

約数和(自身を除く): 101474180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 97, 130, 149, 190, 194, 247, 260, 298, 380, 388, 485, 494, 596, 745, 970, 988, 1235, 1261, 1490, 1843, 1937, 1940, 2470, 2522, 2831, 2980, 3686, 3874, 4940, 5044, 5662, 6305, 7372, 7748, 9215, 9685, 11324, 12610, 14155, 14453, 18430, 19370, 23959, 25220, 28310, 28906, 36803, 36860, 38740, 47918, 56620, 57812, 72265, 73606, 95836, 119795, 144530, 147212, 184015, 187889, 239590, 274607, 289060, 368030, 375778, 479180, 549214, 736060, 751556, 939445, 1098428, 1373035, 1878890, 2746070, 3569891, 3757780, 5492140, 7139782, 14279564, 17849455, 35698910, 71397820]

約数ペア:

[(1, 71397820), (2, 35698910), (4, 17849455), (5, 14279564), (10, 7139782), (13, 5492140), (19, 3757780), (20, 3569891), (26, 2746070), (38, 1878890), (52, 1373035), (65, 1098428), (76, 939445), (95, 751556), (97, 736060), (130, 549214), (149, 479180), (190, 375778), (194, 368030), (247, 289060), (260, 274607), (298, 239590), (380, 187889), (388, 184015), (485, 147212), (494, 144530), (596, 119795), (745, 95836), (970, 73606), (988, 72265), (1235, 57812), (1261, 56620), (1490, 47918), (1843, 38740), (1937, 36860), (1940, 36803), (2470, 28906), (2522, 28310), (2831, 25220), (2980, 23959), (3686, 19370), (3874, 18430), (4940, 14453), (5044, 14155), (5662, 12610), (6305, 11324), (7372, 9685), (7748, 9215)]