2021855120

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{271}}^1\times {\mathrm{521}}^1$

素因数の和:984

約数の個数: 80

約数和(自身を含む): 4753624320

約数和(自身を除く): 2731769200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 271, 358, 521, 542, 716, 895, 1042, 1084, 1355, 1432, 1790, 2084, 2168, 2605, 2710, 2864, 3580, 4168, 4336, 5210, 5420, 7160, 8336, 10420, 10840, 14320, 20840, 21680, 41680, 48509, 93259, 97018, 141191, 186518, 194036, 242545, 282382, 373036, 388072, 466295, 485090, 564764, 705955, 746072, 776144, 932590, 970180, 1129528, 1411910, 1492144, 1865180, 1940360, 2259056, 2823820, 3730360, 3880720, 5647640, 7460720, 11295280, 25273189, 50546378, 101092756, 126365945, 202185512, 252731890, 404371024, 505463780, 1010927560, 2021855120]

約数ペア:

[(1, 2021855120), (2, 1010927560), (4, 505463780), (5, 404371024), (8, 252731890), (10, 202185512), (16, 126365945), (20, 101092756), (40, 50546378), (80, 25273189), (179, 11295280), (271, 7460720), (358, 5647640), (521, 3880720), (542, 3730360), (716, 2823820), (895, 2259056), (1042, 1940360), (1084, 1865180), (1355, 1492144), (1432, 1411910), (1790, 1129528), (2084, 970180), (2168, 932590), (2605, 776144), (2710, 746072), (2864, 705955), (3580, 564764), (4168, 485090), (4336, 466295), (5210, 388072), (5420, 373036), (7160, 282382), (8336, 242545), (10420, 194036), (10840, 186518), (14320, 141191), (20840, 97018), (21680, 93259), (41680, 48509)]