15011720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 35244720

約数和(自身を除く): 20233000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 73, 97, 106, 146, 194, 212, 265, 292, 365, 388, 424, 485, 530, 584, 730, 776, 970, 1060, 1460, 1940, 2120, 2920, 3869, 3880, 5141, 7081, 7738, 10282, 14162, 15476, 19345, 20564, 25705, 28324, 30952, 35405, 38690, 41128, 51410, 56648, 70810, 77380, 102820, 141620, 154760, 205640, 283240, 375293, 750586, 1501172, 1876465, 3002344, 3752930, 7505860, 15011720]

約数ペア:

[(1, 15011720), (2, 7505860), (4, 3752930), (5, 3002344), (8, 1876465), (10, 1501172), (20, 750586), (40, 375293), (53, 283240), (73, 205640), (97, 154760), (106, 141620), (146, 102820), (194, 77380), (212, 70810), (265, 56648), (292, 51410), (365, 41128), (388, 38690), (424, 35405), (485, 30952), (530, 28324), (584, 25705), (730, 20564), (776, 19345), (970, 15476), (1060, 14162), (1460, 10282), (1940, 7738), (2120, 7081), (2920, 5141), (3869, 3880)]