78177780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{22859}}^1$

素因数の和:22893

約数の個数: 72

約数和(自身を含む): 249631200

約数和(自身を除く): 171453420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 22859, 45718, 68577, 91436, 114295, 137154, 205731, 228590, 274308, 342885, 411462, 434321, 457180, 685770, 822924, 868642, 1028655, 1302963, 1371540, 1737284, 2057310, 2171605, 2605926, 3908889, 4114620, 4343210, 5211852, 6514815, 7817778, 8686420, 13029630, 15635556, 19544445, 26059260, 39088890, 78177780]

約数ペア:

[(1, 78177780), (2, 39088890), (3, 26059260), (4, 19544445), (5, 15635556), (6, 13029630), (9, 8686420), (10, 7817778), (12, 6514815), (15, 5211852), (18, 4343210), (19, 4114620), (20, 3908889), (30, 2605926), (36, 2171605), (38, 2057310), (45, 1737284), (57, 1371540), (60, 1302963), (76, 1028655), (90, 868642), (95, 822924), (114, 685770), (171, 457180), (180, 434321), (190, 411462), (228, 342885), (285, 274308), (342, 228590), (380, 205731), (570, 137154), (684, 114295), (855, 91436), (1140, 68577), (1710, 45718), (3420, 22859)]