71811290

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 141647616

約数和(自身を除く): 69836326

約数列:

[1, 2, 5, 10, 23, 43, 46, 53, 86, 106, 115, 137, 215, 230, 265, 274, 430, 530, 685, 989, 1219, 1370, 1978, 2279, 2438, 3151, 4558, 4945, 5891, 6095, 6302, 7261, 9890, 11395, 11782, 12190, 14522, 15755, 22790, 29455, 31510, 36305, 52417, 58910, 72610, 104834, 135493, 167003, 262085, 270986, 312223, 334006, 524170, 624446, 677465, 835015, 1354930, 1561115, 1670030, 3122230, 7181129, 14362258, 35905645, 71811290]

約数ペア:

[(1, 71811290), (2, 35905645), (5, 14362258), (10, 7181129), (23, 3122230), (43, 1670030), (46, 1561115), (53, 1354930), (86, 835015), (106, 677465), (115, 624446), (137, 524170), (215, 334006), (230, 312223), (265, 270986), (274, 262085), (430, 167003), (530, 135493), (685, 104834), (989, 72610), (1219, 58910), (1370, 52417), (1978, 36305), (2279, 31510), (2438, 29455), (3151, 22790), (4558, 15755), (4945, 14522), (5891, 12190), (6095, 11782), (6302, 11395), (7261, 9890)]