18129720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:325

約数の個数: 128

約数和(自身を含む): 63037440

約数和(自身を除く): 44907720

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, 105, 113, 120, 140, 168, 191, 210, 226, 280, 339, 382, 420, 452, 565, 573, 678, 764, 791, 840, 904, 955, 1130, 1146, 1337, 1356, 1528, 1582, 1695, 1910, 2260, 2292, 2373, 2674, 2712, 2865, 3164, 3390, 3820, 3955, 4011, 4520, 4584, 4746, 5348, 5730, 6328, 6685, 6780, 7640, 7910, 8022, 9492, 10696, 11460, 11865, 13370, 13560, 15820, 16044, 18984, 20055, 21583, 22920, 23730, 26740, 31640, 32088, 40110, 43166, 47460, 53480, 64749, 80220, 86332, 94920, 107915, 129498, 151081, 160440, 172664, 215830, 258996, 302162, 323745, 431660, 453243, 517992, 604324, 647490, 755405, 863320, 906486, 1208648, 1294980, 1510810, 1812972, 2266215, 2589960, 3021620, 3625944, 4532430, 6043240, 9064860, 18129720]

約数ペア:

[(1, 18129720), (2, 9064860), (3, 6043240), (4, 4532430), (5, 3625944), (6, 3021620), (7, 2589960), (8, 2266215), (10, 1812972), (12, 1510810), (14, 1294980), (15, 1208648), (20, 906486), (21, 863320), (24, 755405), (28, 647490), (30, 604324), (35, 517992), (40, 453243), (42, 431660), (56, 323745), (60, 302162), (70, 258996), (84, 215830), (105, 172664), (113, 160440), (120, 151081), (140, 129498), (168, 107915), (191, 94920), (210, 86332), (226, 80220), (280, 64749), (339, 53480), (382, 47460), (420, 43166), (452, 40110), (565, 32088), (573, 31640), (678, 26740), (764, 23730), (791, 22920), (840, 21583), (904, 20055), (955, 18984), (1130, 16044), (1146, 15820), (1337, 13560), (1356, 13370), (1528, 11865), (1582, 11460), (1695, 10696), (1910, 9492), (2260, 8022), (2292, 7910), (2373, 7640), (2674, 6780), (2712, 6685), (2865, 6328), (3164, 5730), (3390, 5348), (3820, 4746), (3955, 4584), (4011, 4520)]