78801996

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^3\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 235505760

約数和(自身を除く): 156703764

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 61, 78, 84, 91, 98, 122, 147, 156, 169, 182, 183, 196, 244, 273, 294, 338, 364, 366, 427, 507, 546, 588, 637, 676, 732, 793, 854, 1014, 1092, 1183, 1274, 1281, 1586, 1708, 1911, 2028, 2197, 2366, 2379, 2548, 2562, 2989, 3172, 3549, 3822, 4394, 4732, 4758, 5124, 5551, 5978, 6591, 7098, 7644, 8281, 8788, 8967, 9516, 10309, 11102, 11956, 13182, 14196, 15379, 16562, 16653, 17934, 20618, 22204, 24843, 26364, 30758, 30927, 33124, 33306, 35868, 38857, 41236, 46137, 49686, 61516, 61854, 66612, 72163, 77714, 92274, 99372, 107653, 116571, 123708, 134017, 144326, 155428, 184548, 215306, 216489, 233142, 268034, 288652, 322959, 402051, 430612, 432978, 466284, 505141, 536068, 645918, 804102, 865956, 938119, 1010282, 1291836, 1515423, 1608204, 1876238, 2020564, 2814357, 3030846, 3752476, 5628714, 6061692, 6566833, 11257428, 13133666, 19700499, 26267332, 39400998, 78801996]

約数ペア:

[(1, 78801996), (2, 39400998), (3, 26267332), (4, 19700499), (6, 13133666), (7, 11257428), (12, 6566833), (13, 6061692), (14, 5628714), (21, 3752476), (26, 3030846), (28, 2814357), (39, 2020564), (42, 1876238), (49, 1608204), (52, 1515423), (61, 1291836), (78, 1010282), (84, 938119), (91, 865956), (98, 804102), (122, 645918), (147, 536068), (156, 505141), (169, 466284), (182, 432978), (183, 430612), (196, 402051), (244, 322959), (273, 288652), (294, 268034), (338, 233142), (364, 216489), (366, 215306), (427, 184548), (507, 155428), (546, 144326), (588, 134017), (637, 123708), (676, 116571), (732, 107653), (793, 99372), (854, 92274), (1014, 77714), (1092, 72163), (1183, 66612), (1274, 61854), (1281, 61516), (1586, 49686), (1708, 46137), (1911, 41236), (2028, 38857), (2197, 35868), (2366, 33306), (2379, 33124), (2548, 30927), (2562, 30758), (2989, 26364), (3172, 24843), (3549, 22204), (3822, 20618), (4394, 17934), (4732, 16653), (4758, 16562), (5124, 15379), (5551, 14196), (5978, 13182), (6591, 11956), (7098, 11102), (7644, 10309), (8281, 9516), (8788, 8967)]