447720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:75

約数の個数: 128

約数和(自身を含む): 1693440

約数和(自身を除く): 1245720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 41, 42, 52, 56, 60, 65, 70, 78, 82, 84, 91, 104, 105, 120, 123, 130, 140, 156, 164, 168, 182, 195, 205, 210, 246, 260, 273, 280, 287, 312, 328, 364, 390, 410, 420, 455, 492, 520, 533, 546, 574, 615, 728, 780, 820, 840, 861, 910, 984, 1066, 1092, 1148, 1230, 1365, 1435, 1560, 1599, 1640, 1722, 1820, 2132, 2184, 2296, 2460, 2665, 2730, 2870, 3198, 3444, 3640, 3731, 4264, 4305, 4920, 5330, 5460, 5740, 6396, 6888, 7462, 7995, 8610, 10660, 10920, 11193, 11480, 12792, 14924, 15990, 17220, 18655, 21320, 22386, 29848, 31980, 34440, 37310, 44772, 55965, 63960, 74620, 89544, 111930, 149240, 223860, 447720]

約数ペア:

[(1, 447720), (2, 223860), (3, 149240), (4, 111930), (5, 89544), (6, 74620), (7, 63960), (8, 55965), (10, 44772), (12, 37310), (13, 34440), (14, 31980), (15, 29848), (20, 22386), (21, 21320), (24, 18655), (26, 17220), (28, 15990), (30, 14924), (35, 12792), (39, 11480), (40, 11193), (41, 10920), (42, 10660), (52, 8610), (56, 7995), (60, 7462), (65, 6888), (70, 6396), (78, 5740), (82, 5460), (84, 5330), (91, 4920), (104, 4305), (105, 4264), (120, 3731), (123, 3640), (130, 3444), (140, 3198), (156, 2870), (164, 2730), (168, 2665), (182, 2460), (195, 2296), (205, 2184), (210, 2132), (246, 1820), (260, 1722), (273, 1640), (280, 1599), (287, 1560), (312, 1435), (328, 1365), (364, 1230), (390, 1148), (410, 1092), (420, 1066), (455, 984), (492, 910), (520, 861), (533, 840), (546, 820), (574, 780), (615, 728)]