221400010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 467897472

約数和(自身を除く): 246497462

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 71, 83, 85, 130, 142, 166, 170, 221, 289, 355, 415, 442, 578, 710, 830, 923, 1079, 1105, 1207, 1411, 1445, 1846, 2158, 2210, 2414, 2822, 2890, 3757, 4615, 5395, 5893, 6035, 7055, 7514, 9230, 10790, 11786, 12070, 14110, 15691, 18343, 18785, 20519, 23987, 29465, 31382, 36686, 37570, 41038, 47974, 58930, 76609, 78455, 91715, 100181, 102595, 119935, 153218, 156910, 183430, 200362, 205190, 239870, 266747, 311831, 383045, 500905, 533494, 623662, 766090, 1001810, 1302353, 1333735, 1559155, 1703077, 2604706, 2667470, 3118310, 3406154, 6511765, 8515385, 13023530, 17030770, 22140001, 44280002, 110700005, 221400010]

約数ペア:

[(1, 221400010), (2, 110700005), (5, 44280002), (10, 22140001), (13, 17030770), (17, 13023530), (26, 8515385), (34, 6511765), (65, 3406154), (71, 3118310), (83, 2667470), (85, 2604706), (130, 1703077), (142, 1559155), (166, 1333735), (170, 1302353), (221, 1001810), (289, 766090), (355, 623662), (415, 533494), (442, 500905), (578, 383045), (710, 311831), (830, 266747), (923, 239870), (1079, 205190), (1105, 200362), (1207, 183430), (1411, 156910), (1445, 153218), (1846, 119935), (2158, 102595), (2210, 100181), (2414, 91715), (2822, 78455), (2890, 76609), (3757, 58930), (4615, 47974), (5395, 41038), (5893, 37570), (6035, 36686), (7055, 31382), (7514, 29465), (9230, 23987), (10790, 20519), (11786, 18785), (12070, 18343), (14110, 15691)]