378919640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:393

約数の個数: 128

約数和(自身を含む): 966712320

約数和(自身を除く): 587792680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 73, 88, 94, 110, 146, 188, 220, 235, 251, 292, 365, 376, 440, 470, 502, 517, 584, 730, 803, 940, 1004, 1034, 1255, 1460, 1606, 1880, 2008, 2068, 2510, 2585, 2761, 2920, 3212, 3431, 4015, 4136, 5020, 5170, 5522, 6424, 6862, 8030, 10040, 10340, 11044, 11797, 13724, 13805, 16060, 17155, 18323, 20680, 22088, 23594, 27448, 27610, 32120, 34310, 36646, 37741, 47188, 55220, 58985, 68620, 73292, 75482, 91615, 94376, 110440, 117970, 129767, 137240, 146584, 150964, 183230, 188705, 201553, 235940, 259534, 301928, 366460, 377410, 403106, 471880, 519068, 648835, 732920, 754820, 806212, 861181, 1007765, 1038136, 1297670, 1509640, 1612424, 1722362, 2015530, 2595340, 3444724, 4031060, 4305905, 5190680, 6889448, 8062120, 8611810, 9472991, 17223620, 18945982, 34447240, 37891964, 47364955, 75783928, 94729910, 189459820, 378919640]

約数ペア:

[(1, 378919640), (2, 189459820), (4, 94729910), (5, 75783928), (8, 47364955), (10, 37891964), (11, 34447240), (20, 18945982), (22, 17223620), (40, 9472991), (44, 8611810), (47, 8062120), (55, 6889448), (73, 5190680), (88, 4305905), (94, 4031060), (110, 3444724), (146, 2595340), (188, 2015530), (220, 1722362), (235, 1612424), (251, 1509640), (292, 1297670), (365, 1038136), (376, 1007765), (440, 861181), (470, 806212), (502, 754820), (517, 732920), (584, 648835), (730, 519068), (803, 471880), (940, 403106), (1004, 377410), (1034, 366460), (1255, 301928), (1460, 259534), (1606, 235940), (1880, 201553), (2008, 188705), (2068, 183230), (2510, 150964), (2585, 146584), (2761, 137240), (2920, 129767), (3212, 117970), (3431, 110440), (4015, 94376), (4136, 91615), (5020, 75482), (5170, 73292), (5522, 68620), (6424, 58985), (6862, 55220), (8030, 47188), (10040, 37741), (10340, 36646), (11044, 34310), (11797, 32120), (13724, 27610), (13805, 27448), (16060, 23594), (17155, 22088), (18323, 20680)]