178331440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:267

約数の個数: 160

約数和(自身を含む): 499968000

約数和(自身を除く): 321636560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 79, 80, 112, 116, 139, 140, 145, 158, 203, 232, 278, 280, 290, 316, 395, 406, 464, 553, 556, 560, 580, 632, 695, 790, 812, 973, 1015, 1106, 1112, 1160, 1264, 1390, 1580, 1624, 1946, 2030, 2212, 2224, 2291, 2320, 2765, 2780, 3160, 3248, 3892, 4031, 4060, 4424, 4582, 4865, 5530, 5560, 6320, 7784, 8062, 8120, 8848, 9164, 9730, 10981, 11060, 11120, 11455, 15568, 16037, 16124, 16240, 18328, 19460, 20155, 21962, 22120, 22910, 28217, 32074, 32248, 36656, 38920, 40310, 43924, 44240, 45820, 54905, 56434, 64148, 64496, 76867, 77840, 80185, 80620, 87848, 91640, 109810, 112868, 128296, 141085, 153734, 160370, 161240, 175696, 183280, 219620, 225736, 256592, 282170, 307468, 318449, 320740, 322480, 384335, 439240, 451472, 564340, 614936, 636898, 641480, 768670, 878480, 1128680, 1229872, 1273796, 1282960, 1537340, 1592245, 2229143, 2257360, 2547592, 3074680, 3184490, 4458286, 5095184, 6149360, 6368980, 8916572, 11145715, 12737960, 17833144, 22291430, 25475920, 35666288, 44582860, 89165720, 178331440]

約数ペア:

[(1, 178331440), (2, 89165720), (4, 44582860), (5, 35666288), (7, 25475920), (8, 22291430), (10, 17833144), (14, 12737960), (16, 11145715), (20, 8916572), (28, 6368980), (29, 6149360), (35, 5095184), (40, 4458286), (56, 3184490), (58, 3074680), (70, 2547592), (79, 2257360), (80, 2229143), (112, 1592245), (116, 1537340), (139, 1282960), (140, 1273796), (145, 1229872), (158, 1128680), (203, 878480), (232, 768670), (278, 641480), (280, 636898), (290, 614936), (316, 564340), (395, 451472), (406, 439240), (464, 384335), (553, 322480), (556, 320740), (560, 318449), (580, 307468), (632, 282170), (695, 256592), (790, 225736), (812, 219620), (973, 183280), (1015, 175696), (1106, 161240), (1112, 160370), (1160, 153734), (1264, 141085), (1390, 128296), (1580, 112868), (1624, 109810), (1946, 91640), (2030, 87848), (2212, 80620), (2224, 80185), (2291, 77840), (2320, 76867), (2765, 64496), (2780, 64148), (3160, 56434), (3248, 54905), (3892, 45820), (4031, 44240), (4060, 43924), (4424, 40310), (4582, 38920), (4865, 36656), (5530, 32248), (5560, 32074), (6320, 28217), (7784, 22910), (8062, 22120), (8120, 21962), (8848, 20155), (9164, 19460), (9730, 18328), (10981, 16240), (11060, 16124), (11120, 16037), (11455, 15568)]