1816557340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{3607}}^1$

素因数の和:3791

約数の個数: 72

約数和(自身を含む): 4159663200

約数和(自身を除く): 2343105860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 169, 260, 298, 338, 596, 676, 745, 845, 1490, 1690, 1937, 2980, 3380, 3607, 3874, 7214, 7748, 9685, 14428, 18035, 19370, 25181, 36070, 38740, 46891, 50362, 72140, 93782, 100724, 125905, 187564, 234455, 251810, 468910, 503620, 537443, 609583, 937820, 1074886, 1219166, 2149772, 2438332, 2687215, 3047915, 5374430, 6095830, 6986759, 10748860, 12191660, 13973518, 27947036, 34933795, 69867590, 90827867, 139735180, 181655734, 363311468, 454139335, 908278670, 1816557340]

約数ペア:

[(1, 1816557340), (2, 908278670), (4, 454139335), (5, 363311468), (10, 181655734), (13, 139735180), (20, 90827867), (26, 69867590), (52, 34933795), (65, 27947036), (130, 13973518), (149, 12191660), (169, 10748860), (260, 6986759), (298, 6095830), (338, 5374430), (596, 3047915), (676, 2687215), (745, 2438332), (845, 2149772), (1490, 1219166), (1690, 1074886), (1937, 937820), (2980, 609583), (3380, 537443), (3607, 503620), (3874, 468910), (7214, 251810), (7748, 234455), (9685, 187564), (14428, 125905), (18035, 100724), (19370, 93782), (25181, 72140), (36070, 50362), (38740, 46891)]