1836874980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{68489}}^1$

素因数の和:68653

約数の個数: 72

約数和(自身を含む): 5609331000

約数和(自身を除く): 3772456020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 745, 894, 1341, 1490, 1788, 2235, 2682, 2980, 4470, 5364, 6705, 8940, 13410, 26820, 68489, 136978, 205467, 273956, 342445, 410934, 616401, 684890, 821868, 1027335, 1232802, 1369780, 2054670, 2465604, 3082005, 4109340, 6164010, 10204861, 12328020, 20409722, 30614583, 40819444, 51024305, 61229166, 91843749, 102048610, 122458332, 153072915, 183687498, 204097220, 306145830, 367374996, 459218745, 612291660, 918437490, 1836874980]

約数ペア:

[(1, 1836874980), (2, 918437490), (3, 612291660), (4, 459218745), (5, 367374996), (6, 306145830), (9, 204097220), (10, 183687498), (12, 153072915), (15, 122458332), (18, 102048610), (20, 91843749), (30, 61229166), (36, 51024305), (45, 40819444), (60, 30614583), (90, 20409722), (149, 12328020), (180, 10204861), (298, 6164010), (447, 4109340), (596, 3082005), (745, 2465604), (894, 2054670), (1341, 1369780), (1490, 1232802), (1788, 1027335), (2235, 821868), (2682, 684890), (2980, 616401), (4470, 410934), (5364, 342445), (6705, 273956), (8940, 205467), (13410, 136978), (26820, 68489)]