25379080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:350

約数の個数: 64

約数和(自身を含む): 59834880

約数和(自身を除く): 34455800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 124, 155, 194, 211, 248, 310, 388, 422, 485, 620, 776, 844, 970, 1055, 1240, 1688, 1940, 2110, 3007, 3880, 4220, 6014, 6541, 8440, 12028, 13082, 15035, 20467, 24056, 26164, 30070, 32705, 40934, 52328, 60140, 65410, 81868, 102335, 120280, 130820, 163736, 204670, 261640, 409340, 634477, 818680, 1268954, 2537908, 3172385, 5075816, 6344770, 12689540, 25379080]

約数ペア:

[(1, 25379080), (2, 12689540), (4, 6344770), (5, 5075816), (8, 3172385), (10, 2537908), (20, 1268954), (31, 818680), (40, 634477), (62, 409340), (97, 261640), (124, 204670), (155, 163736), (194, 130820), (211, 120280), (248, 102335), (310, 81868), (388, 65410), (422, 60140), (485, 52328), (620, 40934), (776, 32705), (844, 30070), (970, 26164), (1055, 24056), (1240, 20467), (1688, 15035), (1940, 13082), (2110, 12028), (3007, 8440), (3880, 6541), (4220, 6014)]