20320852065

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{383}}^1\times {\mathrm{1913}}^1$

素因数の和:2390

約数の個数: 48

約数和(自身を含む): 33391429632

約数和(自身を除く): 13070577567

約数列:

[1, 3, 5, 15, 43, 129, 215, 383, 645, 1149, 1849, 1913, 1915, 5547, 5739, 5745, 9245, 9565, 16469, 27735, 28695, 49407, 82259, 82345, 246777, 247035, 411295, 708167, 732679, 1233885, 2124501, 2198037, 3537137, 3540835, 3663395, 10611411, 10622505, 10990185, 17685685, 31505197, 53057055, 94515591, 157525985, 472577955, 1354723471, 4064170413, 6773617355, 20320852065]

約数ペア:

[(1, 20320852065), (3, 6773617355), (5, 4064170413), (15, 1354723471), (43, 472577955), (129, 157525985), (215, 94515591), (383, 53057055), (645, 31505197), (1149, 17685685), (1849, 10990185), (1913, 10622505), (1915, 10611411), (5547, 3663395), (5739, 3540835), (5745, 3537137), (9245, 2198037), (9565, 2124501), (16469, 1233885), (27735, 732679), (28695, 708167), (49407, 411295), (82259, 247035), (82345, 246777)]