8220485

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 12927600

約数和(自身を除く): 4707115

約数列:

[1, 5, 7, 13, 29, 35, 49, 65, 89, 91, 145, 203, 245, 377, 445, 455, 623, 637, 1015, 1157, 1421, 1885, 2581, 2639, 3115, 3185, 4361, 5785, 7105, 8099, 12905, 13195, 18067, 18473, 21805, 33553, 40495, 56693, 90335, 92365, 126469, 167765, 234871, 283465, 632345, 1174355, 1644097, 8220485]

約数ペア:

[(1, 8220485), (5, 1644097), (7, 1174355), (13, 632345), (29, 283465), (35, 234871), (49, 167765), (65, 126469), (89, 92365), (91, 90335), (145, 56693), (203, 40495), (245, 33553), (377, 21805), (445, 18473), (455, 18067), (623, 13195), (637, 12905), (1015, 8099), (1157, 7105), (1421, 5785), (1885, 4361), (2581, 3185), (2639, 3115)]