168654140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 378111552

約数和(自身を除く): 209457412

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 271, 290, 370, 542, 580, 740, 841, 1073, 1084, 1355, 1682, 2146, 2710, 3364, 4205, 4292, 5365, 5420, 7859, 8410, 10027, 10730, 15718, 16820, 20054, 21460, 31117, 31436, 39295, 40108, 50135, 62234, 78590, 100270, 124468, 155585, 157180, 200540, 227911, 290783, 311170, 455822, 581566, 622340, 911644, 1139555, 1163132, 1453915, 2279110, 2907830, 4558220, 5815660, 8432707, 16865414, 33730828, 42163535, 84327070, 168654140]

約数ペア:

[(1, 168654140), (2, 84327070), (4, 42163535), (5, 33730828), (10, 16865414), (20, 8432707), (29, 5815660), (37, 4558220), (58, 2907830), (74, 2279110), (116, 1453915), (145, 1163132), (148, 1139555), (185, 911644), (271, 622340), (290, 581566), (370, 455822), (542, 311170), (580, 290783), (740, 227911), (841, 200540), (1073, 157180), (1084, 155585), (1355, 124468), (1682, 100270), (2146, 78590), (2710, 62234), (3364, 50135), (4205, 40108), (4292, 39295), (5365, 31436), (5420, 31117), (7859, 21460), (8410, 20054), (10027, 16820), (10730, 15718)]