2857240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 6539760

約数和(自身を除く): 3682520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1171, 1220, 2342, 2440, 4684, 5855, 9368, 11710, 23420, 46840, 71431, 142862, 285724, 357155, 571448, 714310, 1428620, 2857240]

約数ペア:

[(1, 2857240), (2, 1428620), (4, 714310), (5, 571448), (8, 357155), (10, 285724), (20, 142862), (40, 71431), (61, 46840), (122, 23420), (244, 11710), (305, 9368), (488, 5855), (610, 4684), (1171, 2440), (1220, 2342)]