81623100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20929}}^1$

素因数の和:20959

約数の個数: 72

約数和(自身を含む): 254341360

約数和(自身を除く): 172718260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 20929, 41858, 62787, 83716, 104645, 125574, 209290, 251148, 272077, 313935, 418580, 523225, 544154, 627870, 816231, 1046450, 1088308, 1255740, 1360385, 1569675, 1632462, 2092900, 2720770, 3139350, 3264924, 4081155, 5441540, 6278700, 6801925, 8162310, 13603850, 16324620, 20405775, 27207700, 40811550, 81623100]

約数ペア:

[(1, 81623100), (2, 40811550), (3, 27207700), (4, 20405775), (5, 16324620), (6, 13603850), (10, 8162310), (12, 6801925), (13, 6278700), (15, 5441540), (20, 4081155), (25, 3264924), (26, 3139350), (30, 2720770), (39, 2092900), (50, 1632462), (52, 1569675), (60, 1360385), (65, 1255740), (75, 1088308), (78, 1046450), (100, 816231), (130, 627870), (150, 544154), (156, 523225), (195, 418580), (260, 313935), (300, 272077), (325, 251148), (390, 209290), (650, 125574), (780, 104645), (975, 83716), (1300, 62787), (1950, 41858), (3900, 20929)]