15945720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:525

約数の個数: 128

約数和(自身を含む): 56125440

約数和(自身を除く): 40179720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 82, 84, 105, 120, 123, 140, 164, 168, 205, 210, 246, 280, 287, 328, 410, 420, 463, 492, 574, 615, 820, 840, 861, 926, 984, 1148, 1230, 1389, 1435, 1640, 1722, 1852, 2296, 2315, 2460, 2778, 2870, 3241, 3444, 3704, 4305, 4630, 4920, 5556, 5740, 6482, 6888, 6945, 8610, 9260, 9723, 11112, 11480, 12964, 13890, 16205, 17220, 18520, 18983, 19446, 25928, 27780, 32410, 34440, 37966, 38892, 48615, 55560, 56949, 64820, 75932, 77784, 94915, 97230, 113898, 129640, 132881, 151864, 189830, 194460, 227796, 265762, 284745, 379660, 388920, 398643, 455592, 531524, 569490, 664405, 759320, 797286, 1063048, 1138980, 1328810, 1594572, 1993215, 2277960, 2657620, 3189144, 3986430, 5315240, 7972860, 15945720]

約数ペア:

[(1, 15945720), (2, 7972860), (3, 5315240), (4, 3986430), (5, 3189144), (6, 2657620), (7, 2277960), (8, 1993215), (10, 1594572), (12, 1328810), (14, 1138980), (15, 1063048), (20, 797286), (21, 759320), (24, 664405), (28, 569490), (30, 531524), (35, 455592), (40, 398643), (41, 388920), (42, 379660), (56, 284745), (60, 265762), (70, 227796), (82, 194460), (84, 189830), (105, 151864), (120, 132881), (123, 129640), (140, 113898), (164, 97230), (168, 94915), (205, 77784), (210, 75932), (246, 64820), (280, 56949), (287, 55560), (328, 48615), (410, 38892), (420, 37966), (463, 34440), (492, 32410), (574, 27780), (615, 25928), (820, 19446), (840, 18983), (861, 18520), (926, 17220), (984, 16205), (1148, 13890), (1230, 12964), (1389, 11480), (1435, 11112), (1640, 9723), (1722, 9260), (1852, 8610), (2296, 6945), (2315, 6888), (2460, 6482), (2778, 5740), (2870, 5556), (3241, 4920), (3444, 4630), (3704, 4305)]