18686640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{227}}^1$

素因数の和:264

約数の個数: 160

約数和(自身を含む): 67852800

約数和(自身を除く): 49166160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 227, 240, 245, 280, 294, 336, 343, 392, 420, 454, 490, 560, 588, 681, 686, 735, 784, 840, 908, 980, 1029, 1135, 1176, 1362, 1372, 1470, 1589, 1680, 1715, 1816, 1960, 2058, 2270, 2352, 2724, 2744, 2940, 3178, 3405, 3430, 3632, 3920, 4116, 4540, 4767, 5145, 5448, 5488, 5880, 6356, 6810, 6860, 7945, 8232, 9080, 9534, 10290, 10896, 11123, 11760, 12712, 13620, 13720, 15890, 16464, 18160, 19068, 20580, 22246, 23835, 25424, 27240, 27440, 31780, 33369, 38136, 41160, 44492, 47670, 54480, 55615, 63560, 66738, 76272, 77861, 82320, 88984, 95340, 111230, 127120, 133476, 155722, 166845, 177968, 190680, 222460, 233583, 266952, 311444, 333690, 381360, 389305, 444920, 467166, 533904, 622888, 667380, 778610, 889840, 934332, 1167915, 1245776, 1334760, 1557220, 1868664, 2335830, 2669520, 3114440, 3737328, 4671660, 6228880, 9343320, 18686640]

約数ペア:

[(1, 18686640), (2, 9343320), (3, 6228880), (4, 4671660), (5, 3737328), (6, 3114440), (7, 2669520), (8, 2335830), (10, 1868664), (12, 1557220), (14, 1334760), (15, 1245776), (16, 1167915), (20, 934332), (21, 889840), (24, 778610), (28, 667380), (30, 622888), (35, 533904), (40, 467166), (42, 444920), (48, 389305), (49, 381360), (56, 333690), (60, 311444), (70, 266952), (80, 233583), (84, 222460), (98, 190680), (105, 177968), (112, 166845), (120, 155722), (140, 133476), (147, 127120), (168, 111230), (196, 95340), (210, 88984), (227, 82320), (240, 77861), (245, 76272), (280, 66738), (294, 63560), (336, 55615), (343, 54480), (392, 47670), (420, 44492), (454, 41160), (490, 38136), (560, 33369), (588, 31780), (681, 27440), (686, 27240), (735, 25424), (784, 23835), (840, 22246), (908, 20580), (980, 19068), (1029, 18160), (1135, 16464), (1176, 15890), (1362, 13720), (1372, 13620), (1470, 12712), (1589, 11760), (1680, 11123), (1715, 10896), (1816, 10290), (1960, 9534), (2058, 9080), (2270, 8232), (2352, 7945), (2724, 6860), (2744, 6810), (2940, 6356), (3178, 5880), (3405, 5488), (3430, 5448), (3632, 5145), (3920, 4767), (4116, 4540)]