21513480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2939}}^1$

素因数の和:3014

約数の個数: 64

約数和(自身を含む): 65620800

約数和(自身を除く): 44107320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2939, 3660, 5878, 7320, 8817, 11756, 14695, 17634, 23512, 29390, 35268, 44085, 58780, 70536, 88170, 117560, 176340, 179279, 352680, 358558, 537837, 717116, 896395, 1075674, 1434232, 1792790, 2151348, 2689185, 3585580, 4302696, 5378370, 7171160, 10756740, 21513480]

約数ペア:

[(1, 21513480), (2, 10756740), (3, 7171160), (4, 5378370), (5, 4302696), (6, 3585580), (8, 2689185), (10, 2151348), (12, 1792790), (15, 1434232), (20, 1075674), (24, 896395), (30, 717116), (40, 537837), (60, 358558), (61, 352680), (120, 179279), (122, 176340), (183, 117560), (244, 88170), (305, 70536), (366, 58780), (488, 44085), (610, 35268), (732, 29390), (915, 23512), (1220, 17634), (1464, 14695), (1830, 11756), (2440, 8817), (2939, 7320), (3660, 5878)]