81412150

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^2$

素因数の和:190

約数の個数: 72

約数和(自身を含む): 171183240

約数和(自身を除く): 89771090

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 71, 85, 95, 142, 170, 190, 323, 355, 425, 475, 646, 710, 850, 950, 1207, 1349, 1615, 1775, 2414, 2698, 3230, 3550, 5041, 6035, 6745, 8075, 10082, 12070, 13490, 16150, 22933, 25205, 30175, 33725, 45866, 50410, 60350, 67450, 85697, 95779, 114665, 126025, 171394, 191558, 229330, 252050, 428485, 478895, 573325, 856970, 957790, 1146650, 1628243, 2142425, 2394475, 3256486, 4284850, 4788950, 8141215, 16282430, 40706075, 81412150]

約数ペア:

[(1, 81412150), (2, 40706075), (5, 16282430), (10, 8141215), (17, 4788950), (19, 4284850), (25, 3256486), (34, 2394475), (38, 2142425), (50, 1628243), (71, 1146650), (85, 957790), (95, 856970), (142, 573325), (170, 478895), (190, 428485), (323, 252050), (355, 229330), (425, 191558), (475, 171394), (646, 126025), (710, 114665), (850, 95779), (950, 85697), (1207, 67450), (1349, 60350), (1615, 50410), (1775, 45866), (2414, 33725), (2698, 30175), (3230, 25205), (3550, 22933), (5041, 16150), (6035, 13490), (6745, 12070), (8075, 10082)]