720681680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{3251}}^1$

素因数の和:3444

約数の個数: 80

約数和(自身を含む): 1785582144

約数和(自身を除く): 1064900464

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 163, 170, 272, 326, 340, 652, 680, 815, 1304, 1360, 1630, 2608, 2771, 3251, 3260, 5542, 6502, 6520, 11084, 13004, 13040, 13855, 16255, 22168, 26008, 27710, 32510, 44336, 52016, 55267, 55420, 65020, 110534, 110840, 130040, 221068, 221680, 260080, 276335, 442136, 529913, 552670, 884272, 1059826, 1105340, 2119652, 2210680, 2649565, 4239304, 4421360, 5299130, 8478608, 9008521, 10598260, 18017042, 21196520, 36034084, 42393040, 45042605, 72068168, 90085210, 144136336, 180170420, 360340840, 720681680]

約数ペア:

[(1, 720681680), (2, 360340840), (4, 180170420), (5, 144136336), (8, 90085210), (10, 72068168), (16, 45042605), (17, 42393040), (20, 36034084), (34, 21196520), (40, 18017042), (68, 10598260), (80, 9008521), (85, 8478608), (136, 5299130), (163, 4421360), (170, 4239304), (272, 2649565), (326, 2210680), (340, 2119652), (652, 1105340), (680, 1059826), (815, 884272), (1304, 552670), (1360, 529913), (1630, 442136), (2608, 276335), (2771, 260080), (3251, 221680), (3260, 221068), (5542, 130040), (6502, 110840), (6520, 110534), (11084, 65020), (13004, 55420), (13040, 55267), (13855, 52016), (16255, 44336), (22168, 32510), (26008, 27710)]