1312020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 4108104

約数和(自身を除く): 2796084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 197, 222, 333, 370, 394, 444, 555, 591, 666, 740, 788, 985, 1110, 1182, 1332, 1665, 1773, 1970, 2220, 2364, 2955, 3330, 3546, 3940, 5910, 6660, 7092, 7289, 8865, 11820, 14578, 17730, 21867, 29156, 35460, 36445, 43734, 65601, 72890, 87468, 109335, 131202, 145780, 218670, 262404, 328005, 437340, 656010, 1312020]

約数ペア:

[(1, 1312020), (2, 656010), (3, 437340), (4, 328005), (5, 262404), (6, 218670), (9, 145780), (10, 131202), (12, 109335), (15, 87468), (18, 72890), (20, 65601), (30, 43734), (36, 36445), (37, 35460), (45, 29156), (60, 21867), (74, 17730), (90, 14578), (111, 11820), (148, 8865), (180, 7289), (185, 7092), (197, 6660), (222, 5910), (333, 3940), (370, 3546), (394, 3330), (444, 2955), (555, 2364), (591, 2220), (666, 1970), (740, 1773), (788, 1665), (985, 1332), (1110, 1182)]