8990540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 20556480

約数和(自身を除く): 11565940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 151, 229, 260, 302, 458, 604, 755, 916, 1145, 1510, 1963, 2290, 2977, 3020, 3926, 4580, 5954, 7852, 9815, 11908, 14885, 19630, 29770, 34579, 39260, 59540, 69158, 138316, 172895, 345790, 449527, 691580, 899054, 1798108, 2247635, 4495270, 8990540]

約数ペア:

[(1, 8990540), (2, 4495270), (4, 2247635), (5, 1798108), (10, 899054), (13, 691580), (20, 449527), (26, 345790), (52, 172895), (65, 138316), (130, 69158), (151, 59540), (229, 39260), (260, 34579), (302, 29770), (458, 19630), (604, 14885), (755, 11908), (916, 9815), (1145, 7852), (1510, 5954), (1963, 4580), (2290, 3926), (2977, 3020)]