215655720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1847}}^1$

素因数の和:2007

約数の個数: 128

約数和(自身を含む): 745113600

約数和(自身を除く): 529457880

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, 120, 139, 140, 168, 210, 278, 280, 417, 420, 556, 695, 834, 840, 973, 1112, 1390, 1668, 1847, 1946, 2085, 2780, 2919, 3336, 3694, 3892, 4170, 4865, 5541, 5560, 5838, 7388, 7784, 8340, 9235, 9730, 11082, 11676, 12929, 14595, 14776, 16680, 18470, 19460, 22164, 23352, 25858, 27705, 29190, 36940, 38787, 38920, 44328, 51716, 55410, 58380, 64645, 73880, 77574, 103432, 110820, 116760, 129290, 155148, 193935, 221640, 256733, 258580, 310296, 387870, 513466, 517160, 770199, 775740, 1026932, 1283665, 1540398, 1551480, 1797131, 2053864, 2567330, 3080796, 3594262, 3850995, 5134660, 5391393, 6161592, 7188524, 7701990, 8985655, 10269320, 10782786, 14377048, 15403980, 17971310, 21565572, 26956965, 30807960, 35942620, 43131144, 53913930, 71885240, 107827860, 215655720]

約数ペア:

[(1, 215655720), (2, 107827860), (3, 71885240), (4, 53913930), (5, 43131144), (6, 35942620), (7, 30807960), (8, 26956965), (10, 21565572), (12, 17971310), (14, 15403980), (15, 14377048), (20, 10782786), (21, 10269320), (24, 8985655), (28, 7701990), (30, 7188524), (35, 6161592), (40, 5391393), (42, 5134660), (56, 3850995), (60, 3594262), (70, 3080796), (84, 2567330), (105, 2053864), (120, 1797131), (139, 1551480), (140, 1540398), (168, 1283665), (210, 1026932), (278, 775740), (280, 770199), (417, 517160), (420, 513466), (556, 387870), (695, 310296), (834, 258580), (840, 256733), (973, 221640), (1112, 193935), (1390, 155148), (1668, 129290), (1847, 116760), (1946, 110820), (2085, 103432), (2780, 77574), (2919, 73880), (3336, 64645), (3694, 58380), (3892, 55410), (4170, 51716), (4865, 44328), (5541, 38920), (5560, 38787), (5838, 36940), (7388, 29190), (7784, 27705), (8340, 25858), (9235, 23352), (9730, 22164), (11082, 19460), (11676, 18470), (12929, 16680), (14595, 14776)]