261612660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{256483}}^1$

素因数の和:256512

約数の個数: 48

約数和(自身を含む): 775607616

約数和(自身を除く): 513994956

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 256483, 512966, 769449, 1025932, 1282415, 1538898, 2564830, 3077796, 3847245, 4360211, 5129660, 7694490, 8720422, 13080633, 15388980, 17440844, 21801055, 26161266, 43602110, 52322532, 65403165, 87204220, 130806330, 261612660]

約数ペア:

[(1, 261612660), (2, 130806330), (3, 87204220), (4, 65403165), (5, 52322532), (6, 43602110), (10, 26161266), (12, 21801055), (15, 17440844), (17, 15388980), (20, 13080633), (30, 8720422), (34, 7694490), (51, 5129660), (60, 4360211), (68, 3847245), (85, 3077796), (102, 2564830), (170, 1538898), (204, 1282415), (255, 1025932), (340, 769449), (510, 512966), (1020, 256483)]