312498120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3881}}^1$

素因数の和:3967

約数の個数: 128

約数和(自身を含む): 1039754880

約数和(自身を除く): 727256760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 366, 440, 488, 610, 660, 671, 732, 915, 1220, 1320, 1342, 1464, 1830, 2013, 2440, 2684, 3355, 3660, 3881, 4026, 5368, 6710, 7320, 7762, 8052, 10065, 11643, 13420, 15524, 16104, 19405, 20130, 23286, 26840, 31048, 38810, 40260, 42691, 46572, 58215, 77620, 80520, 85382, 93144, 116430, 128073, 155240, 170764, 213455, 232860, 236741, 256146, 341528, 426910, 465720, 473482, 512292, 640365, 710223, 853820, 946964, 1024584, 1183705, 1280730, 1420446, 1707640, 1893928, 2367410, 2561460, 2604151, 2840892, 3551115, 4734820, 5122920, 5208302, 5681784, 7102230, 7812453, 9469640, 10416604, 13020755, 14204460, 15624906, 20833208, 26041510, 28408920, 31249812, 39062265, 52083020, 62499624, 78124530, 104166040, 156249060, 312498120]

約数ペア:

[(1, 312498120), (2, 156249060), (3, 104166040), (4, 78124530), (5, 62499624), (6, 52083020), (8, 39062265), (10, 31249812), (11, 28408920), (12, 26041510), (15, 20833208), (20, 15624906), (22, 14204460), (24, 13020755), (30, 10416604), (33, 9469640), (40, 7812453), (44, 7102230), (55, 5681784), (60, 5208302), (61, 5122920), (66, 4734820), (88, 3551115), (110, 2840892), (120, 2604151), (122, 2561460), (132, 2367410), (165, 1893928), (183, 1707640), (220, 1420446), (244, 1280730), (264, 1183705), (305, 1024584), (330, 946964), (366, 853820), (440, 710223), (488, 640365), (610, 512292), (660, 473482), (671, 465720), (732, 426910), (915, 341528), (1220, 256146), (1320, 236741), (1342, 232860), (1464, 213455), (1830, 170764), (2013, 155240), (2440, 128073), (2684, 116430), (3355, 93144), (3660, 85382), (3881, 80520), (4026, 77620), (5368, 58215), (6710, 46572), (7320, 42691), (7762, 40260), (8052, 38810), (10065, 31048), (11643, 26840), (13420, 23286), (15524, 20130), (16104, 19405)]