201911680

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10177}}^1$

素因数の和:10227

約数の個数: 64

約数和(自身を含む): 498314880

約数和(自身を除く): 296403200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 10177, 19840, 20354, 40708, 50885, 81416, 101770, 162832, 203540, 315487, 325664, 407080, 630974, 651328, 814160, 1261948, 1302656, 1577435, 1628320, 2523896, 3154870, 3256640, 5047792, 6309740, 6513280, 10095584, 12619480, 20191168, 25238960, 40382336, 50477920, 100955840, 201911680]

約数ペア:

[(1, 201911680), (2, 100955840), (4, 50477920), (5, 40382336), (8, 25238960), (10, 20191168), (16, 12619480), (20, 10095584), (31, 6513280), (32, 6309740), (40, 5047792), (62, 3256640), (64, 3154870), (80, 2523896), (124, 1628320), (128, 1577435), (155, 1302656), (160, 1261948), (248, 814160), (310, 651328), (320, 630974), (496, 407080), (620, 325664), (640, 315487), (992, 203540), (1240, 162832), (1984, 101770), (2480, 81416), (3968, 50885), (4960, 40708), (9920, 20354), (10177, 19840)]