1780451660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{45959}}^1$

素因数の和:46130

約数の個数: 48

約数和(自身を含む): 4053672000

約数和(自身を除く): 2273220340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 596, 745, 1490, 1937, 2980, 3874, 7748, 9685, 19370, 38740, 45959, 91918, 183836, 229795, 459590, 597467, 919180, 1194934, 2389868, 2987335, 5974670, 6847891, 11949340, 13695782, 27391564, 34239455, 68478910, 89022583, 136957820, 178045166, 356090332, 445112915, 890225830, 1780451660]

約数ペア:

[(1, 1780451660), (2, 890225830), (4, 445112915), (5, 356090332), (10, 178045166), (13, 136957820), (20, 89022583), (26, 68478910), (52, 34239455), (65, 27391564), (130, 13695782), (149, 11949340), (260, 6847891), (298, 5974670), (596, 2987335), (745, 2389868), (1490, 1194934), (1937, 919180), (2980, 597467), (3874, 459590), (7748, 229795), (9685, 183836), (19370, 91918), (38740, 45959)]