20415180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 59673600

約数和(自身を除く): 39258420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 59, 60, 73, 79, 118, 146, 158, 177, 219, 236, 237, 292, 295, 316, 354, 365, 395, 438, 474, 590, 708, 730, 790, 876, 885, 948, 1095, 1180, 1185, 1460, 1580, 1770, 2190, 2370, 3540, 4307, 4380, 4661, 4740, 5767, 8614, 9322, 11534, 12921, 13983, 17228, 17301, 18644, 21535, 23068, 23305, 25842, 27966, 28835, 34602, 43070, 46610, 51684, 55932, 57670, 64605, 69204, 69915, 86140, 86505, 93220, 115340, 129210, 139830, 173010, 258420, 279660, 340253, 346020, 680506, 1020759, 1361012, 1701265, 2041518, 3402530, 4083036, 5103795, 6805060, 10207590, 20415180]

約数ペア:

[(1, 20415180), (2, 10207590), (3, 6805060), (4, 5103795), (5, 4083036), (6, 3402530), (10, 2041518), (12, 1701265), (15, 1361012), (20, 1020759), (30, 680506), (59, 346020), (60, 340253), (73, 279660), (79, 258420), (118, 173010), (146, 139830), (158, 129210), (177, 115340), (219, 93220), (236, 86505), (237, 86140), (292, 69915), (295, 69204), (316, 64605), (354, 57670), (365, 55932), (395, 51684), (438, 46610), (474, 43070), (590, 34602), (708, 28835), (730, 27966), (790, 25842), (876, 23305), (885, 23068), (948, 21535), (1095, 18644), (1180, 17301), (1185, 17228), (1460, 13983), (1580, 12921), (1770, 11534), (2190, 9322), (2370, 8614), (3540, 5767), (4307, 4740), (4380, 4661)]