15317720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1176

約数の個数: 64

約数和(自身を含む): 38845440

約数和(自身を除く): 23527720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1123, 1240, 1364, 1705, 2246, 2728, 3410, 4492, 5615, 6820, 8984, 11230, 12353, 13640, 22460, 24706, 34813, 44920, 49412, 61765, 69626, 98824, 123530, 139252, 174065, 247060, 278504, 348130, 382943, 494120, 696260, 765886, 1392520, 1531772, 1914715, 3063544, 3829430, 7658860, 15317720]

約数ペア:

[(1, 15317720), (2, 7658860), (4, 3829430), (5, 3063544), (8, 1914715), (10, 1531772), (11, 1392520), (20, 765886), (22, 696260), (31, 494120), (40, 382943), (44, 348130), (55, 278504), (62, 247060), (88, 174065), (110, 139252), (124, 123530), (155, 98824), (220, 69626), (248, 61765), (310, 49412), (341, 44920), (440, 34813), (620, 24706), (682, 22460), (1123, 13640), (1240, 12353), (1364, 11230), (1705, 8984), (2246, 6820), (2728, 5615), (3410, 4492)]