25915480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1657}}^1$

素因数の和:1708

約数の個数: 64

約数和(自身を含む): 64463040

約数和(自身を除く): 38547560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 920, 1564, 1657, 1955, 3128, 3314, 3910, 6628, 7820, 8285, 13256, 15640, 16570, 28169, 33140, 38111, 56338, 66280, 76222, 112676, 140845, 152444, 190555, 225352, 281690, 304888, 381110, 563380, 647887, 762220, 1126760, 1295774, 1524440, 2591548, 3239435, 5183096, 6478870, 12957740, 25915480]

約数ペア:

[(1, 25915480), (2, 12957740), (4, 6478870), (5, 5183096), (8, 3239435), (10, 2591548), (17, 1524440), (20, 1295774), (23, 1126760), (34, 762220), (40, 647887), (46, 563380), (68, 381110), (85, 304888), (92, 281690), (115, 225352), (136, 190555), (170, 152444), (184, 140845), (230, 112676), (340, 76222), (391, 66280), (460, 56338), (680, 38111), (782, 33140), (920, 28169), (1564, 16570), (1657, 15640), (1955, 13256), (3128, 8285), (3314, 7820), (3910, 6628)]