40840640

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 112

約数和(自身を含む): 105338880

約数和(自身を除く): 64498240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 155, 160, 179, 184, 230, 248, 310, 320, 358, 368, 460, 496, 620, 713, 716, 736, 895, 920, 992, 1240, 1426, 1432, 1472, 1790, 1840, 1984, 2480, 2852, 2864, 3565, 3580, 3680, 4117, 4960, 5549, 5704, 5728, 7130, 7160, 7360, 8234, 9920, 11098, 11408, 11456, 14260, 14320, 16468, 20585, 22196, 22816, 27745, 28520, 28640, 32936, 41170, 44392, 45632, 55490, 57040, 57280, 65872, 82340, 88784, 110980, 114080, 127627, 131744, 164680, 177568, 221960, 228160, 255254, 263488, 329360, 355136, 443920, 510508, 638135, 658720, 887840, 1021016, 1276270, 1317440, 1775680, 2042032, 2552540, 4084064, 5105080, 8168128, 10210160, 20420320, 40840640]

約数ペア:

[(1, 40840640), (2, 20420320), (4, 10210160), (5, 8168128), (8, 5105080), (10, 4084064), (16, 2552540), (20, 2042032), (23, 1775680), (31, 1317440), (32, 1276270), (40, 1021016), (46, 887840), (62, 658720), (64, 638135), (80, 510508), (92, 443920), (115, 355136), (124, 329360), (155, 263488), (160, 255254), (179, 228160), (184, 221960), (230, 177568), (248, 164680), (310, 131744), (320, 127627), (358, 114080), (368, 110980), (460, 88784), (496, 82340), (620, 65872), (713, 57280), (716, 57040), (736, 55490), (895, 45632), (920, 44392), (992, 41170), (1240, 32936), (1426, 28640), (1432, 28520), (1472, 27745), (1790, 22816), (1840, 22196), (1984, 20585), (2480, 16468), (2852, 14320), (2864, 14260), (3565, 11456), (3580, 11408), (3680, 11098), (4117, 9920), (4960, 8234), (5549, 7360), (5704, 7160), (5728, 7130)]