1640894320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{23549}}^1$

素因数の和:23642

約数の個数: 80

約数和(自身を含む): 4170045600

約数和(自身を除く): 2529151280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 670, 871, 1040, 1072, 1340, 1742, 2680, 3484, 4355, 5360, 6968, 8710, 13936, 17420, 23549, 34840, 47098, 69680, 94196, 117745, 188392, 235490, 306137, 376784, 470980, 612274, 941960, 1224548, 1530685, 1577783, 1883920, 2449096, 3061370, 3155566, 4898192, 6122740, 6311132, 7888915, 12245480, 12622264, 15777830, 20511179, 24490960, 25244528, 31555660, 41022358, 63111320, 82044716, 102555895, 126222640, 164089432, 205111790, 328178864, 410223580, 820447160, 1640894320]

約数ペア:

[(1, 1640894320), (2, 820447160), (4, 410223580), (5, 328178864), (8, 205111790), (10, 164089432), (13, 126222640), (16, 102555895), (20, 82044716), (26, 63111320), (40, 41022358), (52, 31555660), (65, 25244528), (67, 24490960), (80, 20511179), (104, 15777830), (130, 12622264), (134, 12245480), (208, 7888915), (260, 6311132), (268, 6122740), (335, 4898192), (520, 3155566), (536, 3061370), (670, 2449096), (871, 1883920), (1040, 1577783), (1072, 1530685), (1340, 1224548), (1742, 941960), (2680, 612274), (3484, 470980), (4355, 376784), (5360, 306137), (6968, 235490), (8710, 188392), (13936, 117745), (17420, 94196), (23549, 69680), (34840, 47098)]