81869850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4231}}^1$

素因数の和:4292

約数の個数: 72

約数和(自身を含む): 225125472

約数和(自身を除く): 143255622

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 43, 45, 50, 75, 86, 90, 129, 150, 215, 225, 258, 387, 430, 450, 645, 774, 1075, 1290, 1935, 2150, 3225, 3870, 4231, 6450, 8462, 9675, 12693, 19350, 21155, 25386, 38079, 42310, 63465, 76158, 105775, 126930, 181933, 190395, 211550, 317325, 363866, 380790, 545799, 634650, 909665, 951975, 1091598, 1637397, 1819330, 1903950, 2728995, 3274794, 4548325, 5457990, 8186985, 9096650, 13644975, 16373970, 27289950, 40934925, 81869850]

約数ペア:

[(1, 81869850), (2, 40934925), (3, 27289950), (5, 16373970), (6, 13644975), (9, 9096650), (10, 8186985), (15, 5457990), (18, 4548325), (25, 3274794), (30, 2728995), (43, 1903950), (45, 1819330), (50, 1637397), (75, 1091598), (86, 951975), (90, 909665), (129, 634650), (150, 545799), (215, 380790), (225, 363866), (258, 317325), (387, 211550), (430, 190395), (450, 181933), (645, 126930), (774, 105775), (1075, 76158), (1290, 63465), (1935, 42310), (2150, 38079), (3225, 25386), (3870, 21155), (4231, 19350), (6450, 12693), (8462, 9675)]