81531996

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{379}}^1$

素因数の和:603

約数の個数: 96

約数和(自身を含む): 235952640

約数和(自身を除く): 154420644

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 197, 273, 364, 379, 394, 546, 591, 758, 788, 1092, 1137, 1182, 1379, 1516, 2274, 2364, 2561, 2653, 2758, 4137, 4548, 4927, 5122, 5306, 5516, 7683, 7959, 8274, 9854, 10244, 10612, 14781, 15366, 15918, 16548, 17927, 19708, 29562, 30732, 31836, 34489, 35854, 53781, 59124, 68978, 71708, 74663, 103467, 107562, 137956, 149326, 206934, 215124, 223989, 298652, 413868, 447978, 522641, 895956, 970619, 1045282, 1567923, 1941238, 2090564, 2911857, 3135846, 3882476, 5823714, 6271692, 6794333, 11647428, 13588666, 20382999, 27177332, 40765998, 81531996]

約数ペア:

[(1, 81531996), (2, 40765998), (3, 27177332), (4, 20382999), (6, 13588666), (7, 11647428), (12, 6794333), (13, 6271692), (14, 5823714), (21, 3882476), (26, 3135846), (28, 2911857), (39, 2090564), (42, 1941238), (52, 1567923), (78, 1045282), (84, 970619), (91, 895956), (156, 522641), (182, 447978), (197, 413868), (273, 298652), (364, 223989), (379, 215124), (394, 206934), (546, 149326), (591, 137956), (758, 107562), (788, 103467), (1092, 74663), (1137, 71708), (1182, 68978), (1379, 59124), (1516, 53781), (2274, 35854), (2364, 34489), (2561, 31836), (2653, 30732), (2758, 29562), (4137, 19708), (4548, 17927), (4927, 16548), (5122, 15918), (5306, 15366), (5516, 14781), (7683, 10612), (7959, 10244), (8274, 9854)]