256703580

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{22637}}^1$

素因数の和:22665

約数の個数: 120

約数和(自身を含む): 920370528

約数和(自身を除く): 663666948

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 11340, 22637, 45274, 67911, 90548, 113185, 135822, 158459, 203733, 226370, 271644, 316918, 339555, 407466, 452740, 475377, 611199, 633836, 679110, 792295, 814932, 950754, 1018665, 1222398, 1358220, 1426131, 1584590, 1833597, 1901508, 2037330, 2376885, 2444796, 2852262, 3055995, 3169180, 3667194, 4074660, 4278393, 4753770, 5704524, 6111990, 7130655, 7334388, 8556786, 9167985, 9507540, 12223980, 12835179, 14261310, 17113572, 18335970, 21391965, 25670358, 28522620, 36671940, 42783930, 51340716, 64175895, 85567860, 128351790, 256703580]

約数ペア:

[(1, 256703580), (2, 128351790), (3, 85567860), (4, 64175895), (5, 51340716), (6, 42783930), (7, 36671940), (9, 28522620), (10, 25670358), (12, 21391965), (14, 18335970), (15, 17113572), (18, 14261310), (20, 12835179), (21, 12223980), (27, 9507540), (28, 9167985), (30, 8556786), (35, 7334388), (36, 7130655), (42, 6111990), (45, 5704524), (54, 4753770), (60, 4278393), (63, 4074660), (70, 3667194), (81, 3169180), (84, 3055995), (90, 2852262), (105, 2444796), (108, 2376885), (126, 2037330), (135, 1901508), (140, 1833597), (162, 1584590), (180, 1426131), (189, 1358220), (210, 1222398), (252, 1018665), (270, 950754), (315, 814932), (324, 792295), (378, 679110), (405, 633836), (420, 611199), (540, 475377), (567, 452740), (630, 407466), (756, 339555), (810, 316918), (945, 271644), (1134, 226370), (1260, 203733), (1620, 158459), (1890, 135822), (2268, 113185), (2835, 90548), (3780, 67911), (5670, 45274), (11340, 22637)]