311933240

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{487}}^1$

素因数の和:804

約数の個数: 64

約数和(自身を含む): 716774400

約数和(自身を除く): 404841160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 239, 268, 335, 478, 487, 536, 670, 956, 974, 1195, 1340, 1912, 1948, 2390, 2435, 2680, 3896, 4780, 4870, 9560, 9740, 16013, 19480, 32026, 32629, 64052, 65258, 80065, 116393, 128104, 130516, 160130, 163145, 232786, 261032, 320260, 326290, 465572, 581965, 640520, 652580, 931144, 1163930, 1305160, 2327860, 4655720, 7798331, 15596662, 31193324, 38991655, 62386648, 77983310, 155966620, 311933240]

約数ペア:

[(1, 311933240), (2, 155966620), (4, 77983310), (5, 62386648), (8, 38991655), (10, 31193324), (20, 15596662), (40, 7798331), (67, 4655720), (134, 2327860), (239, 1305160), (268, 1163930), (335, 931144), (478, 652580), (487, 640520), (536, 581965), (670, 465572), (956, 326290), (974, 320260), (1195, 261032), (1340, 232786), (1912, 163145), (1948, 160130), (2390, 130516), (2435, 128104), (2680, 116393), (3896, 80065), (4780, 65258), (4870, 64052), (9560, 32629), (9740, 32026), (16013, 19480)]