218289316

素因数分解:

$2^2\times 7^5\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 474356736

約数和(自身を除く): 256067420

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 191, 196, 238, 343, 382, 476, 686, 764, 833, 1337, 1372, 1666, 2401, 2674, 3247, 3332, 4802, 5348, 5831, 6494, 9359, 9604, 11662, 12988, 16807, 18718, 22729, 23324, 33614, 37436, 40817, 45458, 65513, 67228, 81634, 90916, 131026, 159103, 163268, 262052, 285719, 318206, 458591, 571438, 636412, 917182, 1113721, 1142876, 1834364, 2227442, 3210137, 4454884, 6420274, 7796047, 12840548, 15592094, 31184188, 54572329, 109144658, 218289316]

約数ペア:

[(1, 218289316), (2, 109144658), (4, 54572329), (7, 31184188), (14, 15592094), (17, 12840548), (28, 7796047), (34, 6420274), (49, 4454884), (68, 3210137), (98, 2227442), (119, 1834364), (191, 1142876), (196, 1113721), (238, 917182), (343, 636412), (382, 571438), (476, 458591), (686, 318206), (764, 285719), (833, 262052), (1337, 163268), (1372, 159103), (1666, 131026), (2401, 90916), (2674, 81634), (3247, 67228), (3332, 65513), (4802, 45458), (5348, 40817), (5831, 37436), (6494, 33614), (9359, 23324), (9604, 22729), (11662, 18718), (12988, 16807)]