161866120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:287

約数の個数: 128

約数和(自身を含む): 413683200

約数和(自身を除く): 251817080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 47, 52, 65, 74, 94, 104, 130, 148, 179, 185, 188, 235, 260, 296, 358, 370, 376, 470, 481, 520, 611, 716, 740, 895, 940, 962, 1222, 1432, 1480, 1739, 1790, 1880, 1924, 2327, 2405, 2444, 3055, 3478, 3580, 3848, 4654, 4810, 4888, 6110, 6623, 6956, 7160, 8413, 8695, 9308, 9620, 11635, 12220, 13246, 13912, 16826, 17390, 18616, 19240, 22607, 23270, 24440, 26492, 33115, 33652, 34780, 42065, 45214, 46540, 52984, 66230, 67304, 69560, 84130, 86099, 90428, 93080, 109369, 113035, 132460, 168260, 172198, 180856, 218738, 226070, 264920, 311281, 336520, 344396, 430495, 437476, 452140, 546845, 622562, 688792, 860990, 874952, 904280, 1093690, 1245124, 1556405, 1721980, 2187380, 2490248, 3112810, 3443960, 4046653, 4374760, 6225620, 8093306, 12451240, 16186612, 20233265, 32373224, 40466530, 80933060, 161866120]

約数ペア:

[(1, 161866120), (2, 80933060), (4, 40466530), (5, 32373224), (8, 20233265), (10, 16186612), (13, 12451240), (20, 8093306), (26, 6225620), (37, 4374760), (40, 4046653), (47, 3443960), (52, 3112810), (65, 2490248), (74, 2187380), (94, 1721980), (104, 1556405), (130, 1245124), (148, 1093690), (179, 904280), (185, 874952), (188, 860990), (235, 688792), (260, 622562), (296, 546845), (358, 452140), (370, 437476), (376, 430495), (470, 344396), (481, 336520), (520, 311281), (611, 264920), (716, 226070), (740, 218738), (895, 180856), (940, 172198), (962, 168260), (1222, 132460), (1432, 113035), (1480, 109369), (1739, 93080), (1790, 90428), (1880, 86099), (1924, 84130), (2327, 69560), (2405, 67304), (2444, 66230), (3055, 52984), (3478, 46540), (3580, 45214), (3848, 42065), (4654, 34780), (4810, 33652), (4888, 33115), (6110, 26492), (6623, 24440), (6956, 23270), (7160, 22607), (8413, 19240), (8695, 18616), (9308, 17390), (9620, 16826), (11635, 13912), (12220, 13246)]