18810800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:127

約数の個数: 120

約数和(自身を含む): 49080192

約数和(自身を除く): 30269392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 37, 40, 41, 50, 62, 74, 80, 82, 100, 124, 148, 155, 164, 185, 200, 205, 248, 296, 310, 328, 370, 400, 410, 496, 592, 620, 656, 740, 775, 820, 925, 1025, 1147, 1240, 1271, 1480, 1517, 1550, 1640, 1850, 2050, 2294, 2480, 2542, 2960, 3034, 3100, 3280, 3700, 4100, 4588, 5084, 5735, 6068, 6200, 6355, 7400, 7585, 8200, 9176, 10168, 11470, 12136, 12400, 12710, 14800, 15170, 16400, 18352, 20336, 22940, 24272, 25420, 28675, 30340, 31775, 37925, 45880, 47027, 50840, 57350, 60680, 63550, 75850, 91760, 94054, 101680, 114700, 121360, 127100, 151700, 188108, 229400, 235135, 254200, 303400, 376216, 458800, 470270, 508400, 606800, 752432, 940540, 1175675, 1881080, 2351350, 3762160, 4702700, 9405400, 18810800]

約数ペア:

[(1, 18810800), (2, 9405400), (4, 4702700), (5, 3762160), (8, 2351350), (10, 1881080), (16, 1175675), (20, 940540), (25, 752432), (31, 606800), (37, 508400), (40, 470270), (41, 458800), (50, 376216), (62, 303400), (74, 254200), (80, 235135), (82, 229400), (100, 188108), (124, 151700), (148, 127100), (155, 121360), (164, 114700), (185, 101680), (200, 94054), (205, 91760), (248, 75850), (296, 63550), (310, 60680), (328, 57350), (370, 50840), (400, 47027), (410, 45880), (496, 37925), (592, 31775), (620, 30340), (656, 28675), (740, 25420), (775, 24272), (820, 22940), (925, 20336), (1025, 18352), (1147, 16400), (1240, 15170), (1271, 14800), (1480, 12710), (1517, 12400), (1550, 12136), (1640, 11470), (1850, 10168), (2050, 9176), (2294, 8200), (2480, 7585), (2542, 7400), (2960, 6355), (3034, 6200), (3100, 6068), (3280, 5735), (3700, 5084), (4100, 4588)]