18255720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 63498240

約数和(自身を除く): 45242520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 103, 105, 120, 140, 168, 206, 210, 211, 280, 309, 412, 420, 422, 515, 618, 633, 721, 824, 840, 844, 1030, 1055, 1236, 1266, 1442, 1477, 1545, 1688, 2060, 2110, 2163, 2472, 2532, 2884, 2954, 3090, 3165, 3605, 4120, 4220, 4326, 4431, 5064, 5768, 5908, 6180, 6330, 7210, 7385, 8440, 8652, 8862, 10815, 11816, 12360, 12660, 14420, 14770, 17304, 17724, 21630, 21733, 22155, 25320, 28840, 29540, 35448, 43260, 43466, 44310, 59080, 65199, 86520, 86932, 88620, 108665, 130398, 152131, 173864, 177240, 217330, 260796, 304262, 325995, 434660, 456393, 521592, 608524, 651990, 760655, 869320, 912786, 1217048, 1303980, 1521310, 1825572, 2281965, 2607960, 3042620, 3651144, 4563930, 6085240, 9127860, 18255720]

約数ペア:

[(1, 18255720), (2, 9127860), (3, 6085240), (4, 4563930), (5, 3651144), (6, 3042620), (7, 2607960), (8, 2281965), (10, 1825572), (12, 1521310), (14, 1303980), (15, 1217048), (20, 912786), (21, 869320), (24, 760655), (28, 651990), (30, 608524), (35, 521592), (40, 456393), (42, 434660), (56, 325995), (60, 304262), (70, 260796), (84, 217330), (103, 177240), (105, 173864), (120, 152131), (140, 130398), (168, 108665), (206, 88620), (210, 86932), (211, 86520), (280, 65199), (309, 59080), (412, 44310), (420, 43466), (422, 43260), (515, 35448), (618, 29540), (633, 28840), (721, 25320), (824, 22155), (840, 21733), (844, 21630), (1030, 17724), (1055, 17304), (1236, 14770), (1266, 14420), (1442, 12660), (1477, 12360), (1545, 11816), (1688, 10815), (2060, 8862), (2110, 8652), (2163, 8440), (2472, 7385), (2532, 7210), (2884, 6330), (2954, 6180), (3090, 5908), (3165, 5768), (3605, 5064), (4120, 4431), (4220, 4326)]