1640954992

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1637}}^1$

素因数の和:1766

約数の個数: 80

約数和(自身を含む): 3431780352

約数和(自身を除く): 1790825360

約数列:

[1, 2, 4, 8, 16, 31, 43, 47, 62, 86, 94, 124, 172, 188, 248, 344, 376, 496, 688, 752, 1333, 1457, 1637, 2021, 2666, 2914, 3274, 4042, 5332, 5828, 6548, 8084, 10664, 11656, 13096, 16168, 21328, 23312, 26192, 32336, 50747, 62651, 70391, 76939, 101494, 125302, 140782, 153878, 202988, 250604, 281564, 307756, 405976, 501208, 563128, 615512, 811952, 1002416, 1126256, 1231024, 2182121, 2385109, 3308377, 4364242, 4770218, 6616754, 8728484, 9540436, 13233508, 17456968, 19080872, 26467016, 34913936, 38161744, 52934032, 102559687, 205119374, 410238748, 820477496, 1640954992]

約数ペア:

[(1, 1640954992), (2, 820477496), (4, 410238748), (8, 205119374), (16, 102559687), (31, 52934032), (43, 38161744), (47, 34913936), (62, 26467016), (86, 19080872), (94, 17456968), (124, 13233508), (172, 9540436), (188, 8728484), (248, 6616754), (344, 4770218), (376, 4364242), (496, 3308377), (688, 2385109), (752, 2182121), (1333, 1231024), (1457, 1126256), (1637, 1002416), (2021, 811952), (2666, 615512), (2914, 563128), (3274, 501208), (4042, 405976), (5332, 307756), (5828, 281564), (6548, 250604), (8084, 202988), (10664, 153878), (11656, 140782), (13096, 125302), (16168, 101494), (21328, 76939), (23312, 70391), (26192, 62651), (32336, 50747)]