72920480

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:151

約数の個数: 144

約数和(自身を含む): 194957280

約数和(自身を除く): 122036800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 68, 76, 80, 83, 85, 95, 136, 152, 160, 166, 170, 190, 272, 289, 304, 323, 332, 340, 380, 415, 544, 578, 608, 646, 664, 680, 760, 830, 1156, 1292, 1328, 1360, 1411, 1445, 1520, 1577, 1615, 1660, 2312, 2584, 2656, 2720, 2822, 2890, 3040, 3154, 3230, 3320, 4624, 5168, 5491, 5644, 5780, 6308, 6460, 6640, 7055, 7885, 9248, 10336, 10982, 11288, 11560, 12616, 12920, 13280, 14110, 15770, 21964, 22576, 23120, 23987, 25232, 25840, 26809, 27455, 28220, 31540, 43928, 45152, 46240, 47974, 50464, 51680, 53618, 54910, 56440, 63080, 87856, 95948, 107236, 109820, 112880, 119935, 126160, 134045, 175712, 191896, 214472, 219640, 225760, 239870, 252320, 268090, 383792, 428944, 439280, 455753, 479740, 536180, 767584, 857888, 878560, 911506, 959480, 1072360, 1823012, 1918960, 2144720, 2278765, 3646024, 3837920, 4289440, 4557530, 7292048, 9115060, 14584096, 18230120, 36460240, 72920480]

約数ペア:

[(1, 72920480), (2, 36460240), (4, 18230120), (5, 14584096), (8, 9115060), (10, 7292048), (16, 4557530), (17, 4289440), (19, 3837920), (20, 3646024), (32, 2278765), (34, 2144720), (38, 1918960), (40, 1823012), (68, 1072360), (76, 959480), (80, 911506), (83, 878560), (85, 857888), (95, 767584), (136, 536180), (152, 479740), (160, 455753), (166, 439280), (170, 428944), (190, 383792), (272, 268090), (289, 252320), (304, 239870), (323, 225760), (332, 219640), (340, 214472), (380, 191896), (415, 175712), (544, 134045), (578, 126160), (608, 119935), (646, 112880), (664, 109820), (680, 107236), (760, 95948), (830, 87856), (1156, 63080), (1292, 56440), (1328, 54910), (1360, 53618), (1411, 51680), (1445, 50464), (1520, 47974), (1577, 46240), (1615, 45152), (1660, 43928), (2312, 31540), (2584, 28220), (2656, 27455), (2720, 26809), (2822, 25840), (2890, 25232), (3040, 23987), (3154, 23120), (3230, 22576), (3320, 21964), (4624, 15770), (5168, 14110), (5491, 13280), (5644, 12920), (5780, 12616), (6308, 11560), (6460, 11288), (6640, 10982), (7055, 10336), (7885, 9248)]