179678980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{2689}}^1$

素因数の和:2968

約数の個数: 48

約数和(自身を含む): 408083760

約数和(自身を除く): 228404780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 514, 1028, 1285, 2570, 2689, 3341, 5140, 5378, 6682, 10756, 13364, 13445, 16705, 26890, 33410, 34957, 53780, 66820, 69914, 139828, 174785, 349570, 691073, 699140, 1382146, 2764292, 3455365, 6910730, 8983949, 13821460, 17967898, 35935796, 44919745, 89839490, 179678980]

約数ペア:

[(1, 179678980), (2, 89839490), (4, 44919745), (5, 35935796), (10, 17967898), (13, 13821460), (20, 8983949), (26, 6910730), (52, 3455365), (65, 2764292), (130, 1382146), (257, 699140), (260, 691073), (514, 349570), (1028, 174785), (1285, 139828), (2570, 69914), (2689, 66820), (3341, 53780), (5140, 34957), (5378, 33410), (6682, 26890), (10756, 16705), (13364, 13445)]