20339344

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:152

約数の個数: 80

約数和(自身を含む): 44782848

約数和(自身を除く): 24443504

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 43, 47, 68, 74, 86, 94, 136, 148, 172, 188, 272, 296, 344, 376, 592, 629, 688, 731, 752, 799, 1258, 1462, 1591, 1598, 1739, 2021, 2516, 2924, 3182, 3196, 3478, 4042, 5032, 5848, 6364, 6392, 6956, 8084, 10064, 11696, 12728, 12784, 13912, 16168, 25456, 27047, 27824, 29563, 32336, 34357, 54094, 59126, 68714, 74777, 108188, 118252, 137428, 149554, 216376, 236504, 274856, 299108, 432752, 473008, 549712, 598216, 1196432, 1271209, 2542418, 5084836, 10169672, 20339344]

約数ペア:

[(1, 20339344), (2, 10169672), (4, 5084836), (8, 2542418), (16, 1271209), (17, 1196432), (34, 598216), (37, 549712), (43, 473008), (47, 432752), (68, 299108), (74, 274856), (86, 236504), (94, 216376), (136, 149554), (148, 137428), (172, 118252), (188, 108188), (272, 74777), (296, 68714), (344, 59126), (376, 54094), (592, 34357), (629, 32336), (688, 29563), (731, 27824), (752, 27047), (799, 25456), (1258, 16168), (1462, 13912), (1591, 12784), (1598, 12728), (1739, 11696), (2021, 10064), (2516, 8084), (2924, 6956), (3182, 6392), (3196, 6364), (3478, 5848), (4042, 5032)]