199870003880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{161185487}}^1$

素因数の和:161185529

約数の個数: 32

約数和(自身を含む): 464214205440

約数和(自身を除く): 264344201560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 161185487, 322370974, 644741948, 805927435, 1289483896, 1611854870, 3223709740, 4996750097, 6447419480, 9993500194, 19987000388, 24983750485, 39974000776, 49967500970, 99935001940, 199870003880]

約数ペア:

[(1, 199870003880), (2, 99935001940), (4, 49967500970), (5, 39974000776), (8, 24983750485), (10, 19987000388), (20, 9993500194), (31, 6447419480), (40, 4996750097), (62, 3223709740), (124, 1611854870), (155, 1289483896), (248, 805927435), (310, 644741948), (620, 322370974), (1240, 161185487)]