17881120

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 45505152

約数和(自身を除く): 27624032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 43, 46, 80, 86, 92, 113, 115, 160, 172, 184, 215, 226, 230, 344, 368, 430, 452, 460, 565, 688, 736, 860, 904, 920, 989, 1130, 1376, 1720, 1808, 1840, 1978, 2260, 2599, 3440, 3616, 3680, 3956, 4520, 4859, 4945, 5198, 6880, 7912, 9040, 9718, 9890, 10396, 12995, 15824, 18080, 19436, 19780, 20792, 24295, 25990, 31648, 38872, 39560, 41584, 48590, 51980, 77744, 79120, 83168, 97180, 103960, 111757, 155488, 158240, 194360, 207920, 223514, 388720, 415840, 447028, 558785, 777440, 894056, 1117570, 1788112, 2235140, 3576224, 4470280, 8940560, 17881120]

約数ペア:

[(1, 17881120), (2, 8940560), (4, 4470280), (5, 3576224), (8, 2235140), (10, 1788112), (16, 1117570), (20, 894056), (23, 777440), (32, 558785), (40, 447028), (43, 415840), (46, 388720), (80, 223514), (86, 207920), (92, 194360), (113, 158240), (115, 155488), (160, 111757), (172, 103960), (184, 97180), (215, 83168), (226, 79120), (230, 77744), (344, 51980), (368, 48590), (430, 41584), (452, 39560), (460, 38872), (565, 31648), (688, 25990), (736, 24295), (860, 20792), (904, 19780), (920, 19436), (989, 18080), (1130, 15824), (1376, 12995), (1720, 10396), (1808, 9890), (1840, 9718), (1978, 9040), (2260, 7912), (2599, 6880), (3440, 5198), (3616, 4945), (3680, 4859), (3956, 4520)]