31223560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 77695560

約数和(自身を除く): 46472000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 73, 74, 85, 136, 146, 148, 170, 185, 289, 292, 296, 340, 365, 370, 578, 584, 629, 680, 730, 740, 1156, 1241, 1258, 1445, 1460, 1480, 2312, 2482, 2516, 2701, 2890, 2920, 3145, 4964, 5032, 5402, 5780, 6205, 6290, 9928, 10693, 10804, 11560, 12410, 12580, 13505, 21097, 21386, 21608, 24820, 25160, 27010, 42194, 42772, 45917, 49640, 53465, 54020, 84388, 85544, 91834, 105485, 106930, 108040, 168776, 183668, 210970, 213860, 229585, 367336, 421940, 427720, 459170, 780589, 843880, 918340, 1561178, 1836680, 3122356, 3902945, 6244712, 7805890, 15611780, 31223560]

約数ペア:

[(1, 31223560), (2, 15611780), (4, 7805890), (5, 6244712), (8, 3902945), (10, 3122356), (17, 1836680), (20, 1561178), (34, 918340), (37, 843880), (40, 780589), (68, 459170), (73, 427720), (74, 421940), (85, 367336), (136, 229585), (146, 213860), (148, 210970), (170, 183668), (185, 168776), (289, 108040), (292, 106930), (296, 105485), (340, 91834), (365, 85544), (370, 84388), (578, 54020), (584, 53465), (629, 49640), (680, 45917), (730, 42772), (740, 42194), (1156, 27010), (1241, 25160), (1258, 24820), (1445, 21608), (1460, 21386), (1480, 21097), (2312, 13505), (2482, 12580), (2516, 12410), (2701, 11560), (2890, 10804), (2920, 10693), (3145, 9928), (4964, 6290), (5032, 6205), (5402, 5780)]