280236580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{877}}^1\times {\mathrm{1229}}^1$

素因数の和:2128

約数の個数: 48

約数和(自身を含む): 635004720

約数和(自身を除く): 354768140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 877, 1229, 1754, 2458, 3508, 4385, 4916, 6145, 8770, 11401, 12290, 15977, 17540, 22802, 24580, 31954, 45604, 57005, 63908, 79885, 114010, 159770, 228020, 319540, 1077833, 2155666, 4311332, 5389165, 10778330, 14011829, 21556660, 28023658, 56047316, 70059145, 140118290, 280236580]

約数ペア:

[(1, 280236580), (2, 140118290), (4, 70059145), (5, 56047316), (10, 28023658), (13, 21556660), (20, 14011829), (26, 10778330), (52, 5389165), (65, 4311332), (130, 2155666), (260, 1077833), (877, 319540), (1229, 228020), (1754, 159770), (2458, 114010), (3508, 79885), (4385, 63908), (4916, 57005), (6145, 45604), (8770, 31954), (11401, 24580), (12290, 22802), (15977, 17540)]