16990540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{773}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 41090112

約数和(自身を除く): 24099572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 773, 785, 1099, 1546, 1570, 2198, 3092, 3140, 3865, 4396, 5411, 5495, 7730, 10822, 10990, 15460, 21644, 21980, 27055, 54110, 108220, 121361, 242722, 485444, 606805, 849527, 1213610, 1699054, 2427220, 3398108, 4247635, 8495270, 16990540]

約数ペア:

[(1, 16990540), (2, 8495270), (4, 4247635), (5, 3398108), (7, 2427220), (10, 1699054), (14, 1213610), (20, 849527), (28, 606805), (35, 485444), (70, 242722), (140, 121361), (157, 108220), (314, 54110), (628, 27055), (773, 21980), (785, 21644), (1099, 15460), (1546, 10990), (1570, 10822), (2198, 7730), (3092, 5495), (3140, 5411), (3865, 4396)]