31496360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{571}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 81544320

約数和(自身を除く): 50047960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 571, 788, 985, 1142, 1379, 1576, 1970, 2284, 2758, 2855, 3940, 3997, 4568, 5516, 5710, 6895, 7880, 7994, 11032, 11420, 13790, 15988, 19985, 22840, 27580, 31976, 39970, 55160, 79940, 112487, 159880, 224974, 449948, 562435, 787409, 899896, 1124870, 1574818, 2249740, 3149636, 3937045, 4499480, 6299272, 7874090, 15748180, 31496360]

約数ペア:

[(1, 31496360), (2, 15748180), (4, 7874090), (5, 6299272), (7, 4499480), (8, 3937045), (10, 3149636), (14, 2249740), (20, 1574818), (28, 1124870), (35, 899896), (40, 787409), (56, 562435), (70, 449948), (140, 224974), (197, 159880), (280, 112487), (394, 79940), (571, 55160), (788, 39970), (985, 31976), (1142, 27580), (1379, 22840), (1576, 19985), (1970, 15988), (2284, 13790), (2758, 11420), (2855, 11032), (3940, 7994), (3997, 7880), (4568, 6895), (5516, 5710)]