30505480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 73502640

約数和(自身を除く): 42997160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 113, 136, 170, 226, 340, 397, 452, 565, 680, 794, 904, 1130, 1588, 1921, 1985, 2260, 3176, 3842, 3970, 4520, 6749, 7684, 7940, 9605, 13498, 15368, 15880, 19210, 26996, 33745, 38420, 44861, 53992, 67490, 76840, 89722, 134980, 179444, 224305, 269960, 358888, 448610, 762637, 897220, 1525274, 1794440, 3050548, 3813185, 6101096, 7626370, 15252740, 30505480]

約数ペア:

[(1, 30505480), (2, 15252740), (4, 7626370), (5, 6101096), (8, 3813185), (10, 3050548), (17, 1794440), (20, 1525274), (34, 897220), (40, 762637), (68, 448610), (85, 358888), (113, 269960), (136, 224305), (170, 179444), (226, 134980), (340, 89722), (397, 76840), (452, 67490), (565, 53992), (680, 44861), (794, 38420), (904, 33745), (1130, 26996), (1588, 19210), (1921, 15880), (1985, 15368), (2260, 13498), (3176, 9605), (3842, 7940), (3970, 7684), (4520, 6749)]