81991910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8191}}^1$

素因数の和:8229

約数の個数: 64

約数和(自身を含む): 198180864

約数和(自身を除く): 116188954

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 5005, 8191, 10010, 16382, 40955, 57337, 81910, 90101, 106483, 114674, 180202, 212966, 286685, 450505, 532415, 573370, 630707, 745381, 901010, 1064830, 1171313, 1261414, 1490762, 2342626, 3153535, 3726905, 5856565, 6307070, 7453810, 8199191, 11713130, 16398382, 40995955, 81991910]

約数ペア:

[(1, 81991910), (2, 40995955), (5, 16398382), (7, 11713130), (10, 8199191), (11, 7453810), (13, 6307070), (14, 5856565), (22, 3726905), (26, 3153535), (35, 2342626), (55, 1490762), (65, 1261414), (70, 1171313), (77, 1064830), (91, 901010), (110, 745381), (130, 630707), (143, 573370), (154, 532415), (182, 450505), (286, 286685), (385, 212966), (455, 180202), (715, 114674), (770, 106483), (910, 90101), (1001, 81910), (1430, 57337), (2002, 40955), (5005, 16382), (8191, 10010)]