18464860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 40896576

約数和(自身を除く): 22431716

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 137, 230, 274, 293, 460, 548, 586, 685, 1172, 1370, 1465, 2740, 2930, 3151, 5860, 6302, 6739, 12604, 13478, 15755, 26956, 31510, 33695, 40141, 63020, 67390, 80282, 134780, 160564, 200705, 401410, 802820, 923243, 1846486, 3692972, 4616215, 9232430, 18464860]

約数ペア:

[(1, 18464860), (2, 9232430), (4, 4616215), (5, 3692972), (10, 1846486), (20, 923243), (23, 802820), (46, 401410), (92, 200705), (115, 160564), (137, 134780), (230, 80282), (274, 67390), (293, 63020), (460, 40141), (548, 33695), (586, 31510), (685, 26956), (1172, 15755), (1370, 13478), (1465, 12604), (2740, 6739), (2930, 6302), (3151, 5860)]