251096780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 629207040

約数和(自身を除く): 378110260

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 43, 44, 55, 76, 86, 95, 110, 121, 127, 172, 190, 209, 215, 220, 242, 254, 380, 418, 430, 473, 484, 508, 605, 635, 817, 836, 860, 946, 1045, 1210, 1270, 1397, 1634, 1892, 2090, 2299, 2365, 2413, 2420, 2540, 2794, 3268, 4085, 4180, 4598, 4730, 4826, 5203, 5461, 5588, 6985, 8170, 8987, 9196, 9460, 9652, 10406, 10922, 11495, 12065, 13970, 15367, 16340, 17974, 20812, 21844, 22990, 24130, 26015, 26543, 27305, 27940, 30734, 35948, 44935, 45980, 48260, 52030, 53086, 54610, 60071, 61468, 76835, 89870, 98857, 103759, 104060, 106172, 109220, 120142, 132715, 153670, 179740, 197714, 207518, 240284, 265430, 291973, 300355, 307340, 395428, 415036, 494285, 518795, 530860, 583946, 600710, 660781, 988570, 1037590, 1141349, 1167892, 1201420, 1321562, 1459865, 1977140, 2075180, 2282698, 2643124, 2919730, 3303905, 4565396, 5706745, 5839460, 6607810, 11413490, 12554839, 13215620, 22826980, 25109678, 50219356, 62774195, 125548390, 251096780]

約数ペア:

[(1, 251096780), (2, 125548390), (4, 62774195), (5, 50219356), (10, 25109678), (11, 22826980), (19, 13215620), (20, 12554839), (22, 11413490), (38, 6607810), (43, 5839460), (44, 5706745), (55, 4565396), (76, 3303905), (86, 2919730), (95, 2643124), (110, 2282698), (121, 2075180), (127, 1977140), (172, 1459865), (190, 1321562), (209, 1201420), (215, 1167892), (220, 1141349), (242, 1037590), (254, 988570), (380, 660781), (418, 600710), (430, 583946), (473, 530860), (484, 518795), (508, 494285), (605, 415036), (635, 395428), (817, 307340), (836, 300355), (860, 291973), (946, 265430), (1045, 240284), (1210, 207518), (1270, 197714), (1397, 179740), (1634, 153670), (1892, 132715), (2090, 120142), (2299, 109220), (2365, 106172), (2413, 104060), (2420, 103759), (2540, 98857), (2794, 89870), (3268, 76835), (4085, 61468), (4180, 60071), (4598, 54610), (4730, 53086), (4826, 52030), (5203, 48260), (5461, 45980), (5588, 44935), (6985, 35948), (8170, 30734), (8987, 27940), (9196, 27305), (9460, 26543), (9652, 26015), (10406, 24130), (10922, 22990), (11495, 21844), (12065, 20812), (13970, 17974), (15367, 16340)]