323278280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1999}}^1$

素因数の和:2334

約数の個数: 64

約数和(自身を含む): 786240000

約数和(自身を除く): 462961720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 311, 520, 622, 1244, 1555, 1999, 2488, 3110, 3998, 4043, 6220, 7996, 8086, 9995, 12440, 15992, 16172, 19990, 20215, 25987, 32344, 39980, 40430, 51974, 79960, 80860, 103948, 129935, 161720, 207896, 259870, 519740, 621689, 1039480, 1243378, 2486756, 3108445, 4973512, 6216890, 8081957, 12433780, 16163914, 24867560, 32327828, 40409785, 64655656, 80819570, 161639140, 323278280]

約数ペア:

[(1, 323278280), (2, 161639140), (4, 80819570), (5, 64655656), (8, 40409785), (10, 32327828), (13, 24867560), (20, 16163914), (26, 12433780), (40, 8081957), (52, 6216890), (65, 4973512), (104, 3108445), (130, 2486756), (260, 1243378), (311, 1039480), (520, 621689), (622, 519740), (1244, 259870), (1555, 207896), (1999, 161720), (2488, 129935), (3110, 103948), (3998, 80860), (4043, 79960), (6220, 51974), (7996, 40430), (8086, 39980), (9995, 32344), (12440, 25987), (15992, 20215), (16172, 19990)]