211973940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1787}}^1$

素因数の和:2461

約数の個数: 72

約数和(自身を含む): 644323680

約数和(自身を除く): 432349740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 659, 1318, 1787, 1977, 2636, 3295, 3574, 3954, 5361, 5931, 6590, 7148, 7908, 8935, 9885, 10722, 11862, 13180, 16083, 17870, 19770, 21444, 23724, 26805, 29655, 32166, 35740, 39540, 53610, 59310, 64332, 80415, 107220, 118620, 160830, 321660, 1177633, 2355266, 3532899, 4710532, 5888165, 7065798, 10598697, 11776330, 14131596, 17664495, 21197394, 23552660, 35328990, 42394788, 52993485, 70657980, 105986970, 211973940]

約数ペア:

[(1, 211973940), (2, 105986970), (3, 70657980), (4, 52993485), (5, 42394788), (6, 35328990), (9, 23552660), (10, 21197394), (12, 17664495), (15, 14131596), (18, 11776330), (20, 10598697), (30, 7065798), (36, 5888165), (45, 4710532), (60, 3532899), (90, 2355266), (180, 1177633), (659, 321660), (1318, 160830), (1787, 118620), (1977, 107220), (2636, 80415), (3295, 64332), (3574, 59310), (3954, 53610), (5361, 39540), (5931, 35740), (6590, 32166), (7148, 29655), (7908, 26805), (8935, 23724), (9885, 21444), (10722, 19770), (11862, 17870), (13180, 16083)]