207907960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:881

約数の個数: 128

約数和(自身を含む): 552484800

約数和(自身を除く): 344576840

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 29, 34, 40, 52, 58, 65, 68, 85, 104, 116, 130, 136, 145, 170, 221, 232, 260, 290, 340, 377, 442, 493, 520, 580, 680, 754, 811, 884, 986, 1105, 1160, 1508, 1622, 1768, 1885, 1972, 2210, 2465, 3016, 3244, 3770, 3944, 4055, 4420, 4930, 6409, 6488, 7540, 8110, 8840, 9860, 10543, 12818, 13787, 15080, 16220, 19720, 21086, 23519, 25636, 27574, 32045, 32440, 42172, 47038, 51272, 52715, 55148, 64090, 68935, 84344, 94076, 105430, 110296, 117595, 128180, 137870, 179231, 188152, 210860, 235190, 256360, 275740, 305747, 358462, 399823, 421720, 470380, 551480, 611494, 716924, 799646, 896155, 940760, 1222988, 1433848, 1528735, 1599292, 1792310, 1999115, 2445976, 3057470, 3198584, 3584620, 3998230, 5197699, 6114940, 7169240, 7996460, 10395398, 12229880, 15992920, 20790796, 25988495, 41581592, 51976990, 103953980, 207907960]

約数ペア:

[(1, 207907960), (2, 103953980), (4, 51976990), (5, 41581592), (8, 25988495), (10, 20790796), (13, 15992920), (17, 12229880), (20, 10395398), (26, 7996460), (29, 7169240), (34, 6114940), (40, 5197699), (52, 3998230), (58, 3584620), (65, 3198584), (68, 3057470), (85, 2445976), (104, 1999115), (116, 1792310), (130, 1599292), (136, 1528735), (145, 1433848), (170, 1222988), (221, 940760), (232, 896155), (260, 799646), (290, 716924), (340, 611494), (377, 551480), (442, 470380), (493, 421720), (520, 399823), (580, 358462), (680, 305747), (754, 275740), (811, 256360), (884, 235190), (986, 210860), (1105, 188152), (1160, 179231), (1508, 137870), (1622, 128180), (1768, 117595), (1885, 110296), (1972, 105430), (2210, 94076), (2465, 84344), (3016, 68935), (3244, 64090), (3770, 55148), (3944, 52715), (4055, 51272), (4420, 47038), (4930, 42172), (6409, 32440), (6488, 32045), (7540, 27574), (8110, 25636), (8840, 23519), (9860, 21086), (10543, 19720), (12818, 16220), (13787, 15080)]