321857128

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 649451520

約数和(自身を除く): 327594392

約数列:

[1, 2, 4, 8, 31, 47, 53, 62, 94, 106, 124, 188, 212, 248, 376, 424, 521, 1042, 1457, 1643, 2084, 2491, 2914, 3286, 4168, 4982, 5828, 6572, 9964, 11656, 13144, 16151, 19928, 24487, 27613, 32302, 48974, 55226, 64604, 77221, 97948, 110452, 129208, 154442, 195896, 220904, 308884, 617768, 759097, 856003, 1297811, 1518194, 1712006, 2595622, 3036388, 3424012, 5191244, 6072776, 6848024, 10382488, 40232141, 80464282, 160928564, 321857128]

約数ペア:

[(1, 321857128), (2, 160928564), (4, 80464282), (8, 40232141), (31, 10382488), (47, 6848024), (53, 6072776), (62, 5191244), (94, 3424012), (106, 3036388), (124, 2595622), (188, 1712006), (212, 1518194), (248, 1297811), (376, 856003), (424, 759097), (521, 617768), (1042, 308884), (1457, 220904), (1643, 195896), (2084, 154442), (2491, 129208), (2914, 110452), (3286, 97948), (4168, 77221), (4982, 64604), (5828, 55226), (6572, 48974), (9964, 32302), (11656, 27613), (13144, 24487), (16151, 19928)]