87821860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 221276160

約数和(自身を除く): 133454300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 97, 116, 140, 145, 194, 203, 223, 290, 388, 406, 446, 485, 580, 679, 812, 892, 970, 1015, 1115, 1358, 1561, 1940, 2030, 2230, 2716, 2813, 3122, 3395, 4060, 4460, 5626, 6244, 6467, 6790, 7805, 11252, 12934, 13580, 14065, 15610, 19691, 21631, 25868, 28130, 31220, 32335, 39382, 43262, 45269, 56260, 64670, 78764, 86524, 90538, 98455, 108155, 129340, 151417, 181076, 196910, 216310, 226345, 302834, 393820, 432620, 452690, 605668, 627299, 757085, 905380, 1254598, 1514170, 2509196, 3028340, 3136495, 4391093, 6272990, 8782186, 12545980, 17564372, 21955465, 43910930, 87821860]

約数ペア:

[(1, 87821860), (2, 43910930), (4, 21955465), (5, 17564372), (7, 12545980), (10, 8782186), (14, 6272990), (20, 4391093), (28, 3136495), (29, 3028340), (35, 2509196), (58, 1514170), (70, 1254598), (97, 905380), (116, 757085), (140, 627299), (145, 605668), (194, 452690), (203, 432620), (223, 393820), (290, 302834), (388, 226345), (406, 216310), (446, 196910), (485, 181076), (580, 151417), (679, 129340), (812, 108155), (892, 98455), (970, 90538), (1015, 86524), (1115, 78764), (1358, 64670), (1561, 56260), (1940, 45269), (2030, 43262), (2230, 39382), (2716, 32335), (2813, 31220), (3122, 28130), (3395, 25868), (4060, 21631), (4460, 19691), (5626, 15610), (6244, 14065), (6467, 13580), (6790, 12934), (7805, 11252)]