213198660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{19417}}^1$

素因数の和:19493

約数の個数: 72

約数和(自身を含む): 657338136

約数和(自身を除く): 444139476

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 19417, 38834, 58251, 77668, 97085, 116502, 174753, 194170, 233004, 291255, 349506, 388340, 582510, 699012, 873765, 1165020, 1184437, 1747530, 2368874, 3495060, 3553311, 4737748, 5922185, 7106622, 10659933, 11844370, 14213244, 17766555, 21319866, 23688740, 35533110, 42639732, 53299665, 71066220, 106599330, 213198660]

約数ペア:

[(1, 213198660), (2, 106599330), (3, 71066220), (4, 53299665), (5, 42639732), (6, 35533110), (9, 23688740), (10, 21319866), (12, 17766555), (15, 14213244), (18, 11844370), (20, 10659933), (30, 7106622), (36, 5922185), (45, 4737748), (60, 3553311), (61, 3495060), (90, 2368874), (122, 1747530), (180, 1184437), (183, 1165020), (244, 873765), (305, 699012), (366, 582510), (549, 388340), (610, 349506), (732, 291255), (915, 233004), (1098, 194170), (1220, 174753), (1830, 116502), (2196, 97085), (2745, 77668), (3660, 58251), (5490, 38834), (10980, 19417)]