20327940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3643}}^1$

素因数の和:3689

約数の個数: 72

約数和(自身を含む): 63667968

約数和(自身を除く): 43340028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3643, 5580, 7286, 10929, 14572, 18215, 21858, 32787, 36430, 43716, 54645, 65574, 72860, 109290, 112933, 131148, 163935, 218580, 225866, 327870, 338799, 451732, 564665, 655740, 677598, 1016397, 1129330, 1355196, 1693995, 2032794, 2258660, 3387990, 4065588, 5081985, 6775980, 10163970, 20327940]

約数ペア:

[(1, 20327940), (2, 10163970), (3, 6775980), (4, 5081985), (5, 4065588), (6, 3387990), (9, 2258660), (10, 2032794), (12, 1693995), (15, 1355196), (18, 1129330), (20, 1016397), (30, 677598), (31, 655740), (36, 564665), (45, 451732), (60, 338799), (62, 327870), (90, 225866), (93, 218580), (124, 163935), (155, 131148), (180, 112933), (186, 109290), (279, 72860), (310, 65574), (372, 54645), (465, 43716), (558, 36430), (620, 32787), (930, 21858), (1116, 18215), (1395, 14572), (1860, 10929), (2790, 7286), (3643, 5580)]