213355980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{3581}}^1$

素因数の和:3927

約数の個数: 72

約数和(自身を含む): 649316304

約数和(自身を除く): 435960324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 662, 993, 1324, 1655, 1986, 2979, 3310, 3581, 3972, 4965, 5958, 6620, 7162, 9930, 10743, 11916, 14324, 14895, 17905, 19860, 21486, 29790, 32229, 35810, 42972, 53715, 59580, 64458, 71620, 107430, 128916, 161145, 214860, 322290, 644580, 1185311, 2370622, 3555933, 4741244, 5926555, 7111866, 10667799, 11853110, 14223732, 17779665, 21335598, 23706220, 35559330, 42671196, 53338995, 71118660, 106677990, 213355980]

約数ペア:

[(1, 213355980), (2, 106677990), (3, 71118660), (4, 53338995), (5, 42671196), (6, 35559330), (9, 23706220), (10, 21335598), (12, 17779665), (15, 14223732), (18, 11853110), (20, 10667799), (30, 7111866), (36, 5926555), (45, 4741244), (60, 3555933), (90, 2370622), (180, 1185311), (331, 644580), (662, 322290), (993, 214860), (1324, 161145), (1655, 128916), (1986, 107430), (2979, 71620), (3310, 64458), (3581, 59580), (3972, 53715), (4965, 42972), (5958, 35810), (6620, 32229), (7162, 29790), (9930, 21486), (10743, 19860), (11916, 17905), (14324, 14895)]