1988320

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1$

素因数の和:92

約数の個数: 72

約数和(自身を含む): 5106024

約数和(自身を除く): 3117704

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 68, 80, 85, 86, 136, 160, 170, 172, 215, 272, 289, 340, 344, 430, 544, 578, 680, 688, 731, 860, 1156, 1360, 1376, 1445, 1462, 1720, 2312, 2720, 2890, 2924, 3440, 3655, 4624, 5780, 5848, 6880, 7310, 9248, 11560, 11696, 12427, 14620, 23120, 23392, 24854, 29240, 46240, 49708, 58480, 62135, 99416, 116960, 124270, 198832, 248540, 397664, 497080, 994160, 1988320]

約数ペア:

[(1, 1988320), (2, 994160), (4, 497080), (5, 397664), (8, 248540), (10, 198832), (16, 124270), (17, 116960), (20, 99416), (32, 62135), (34, 58480), (40, 49708), (43, 46240), (68, 29240), (80, 24854), (85, 23392), (86, 23120), (136, 14620), (160, 12427), (170, 11696), (172, 11560), (215, 9248), (272, 7310), (289, 6880), (340, 5848), (344, 5780), (430, 4624), (544, 3655), (578, 3440), (680, 2924), (688, 2890), (731, 2720), (860, 2312), (1156, 1720), (1360, 1462), (1376, 1445)]