68689275

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 124724160

約数和(自身を除く): 56034885

約数列:

[1, 3, 5, 15, 19, 25, 43, 57, 59, 75, 95, 129, 177, 215, 285, 295, 361, 475, 645, 817, 885, 1075, 1083, 1121, 1425, 1475, 1805, 2451, 2537, 3225, 3363, 4085, 4425, 5415, 5605, 7611, 9025, 12255, 12685, 15523, 16815, 20425, 21299, 27075, 28025, 38055, 46569, 48203, 61275, 63425, 63897, 77615, 84075, 106495, 144609, 190275, 232845, 241015, 319485, 388075, 532475, 723045, 915857, 1164225, 1205075, 1597425, 2747571, 3615225, 4579285, 13737855, 22896425, 68689275]

約数ペア:

[(1, 68689275), (3, 22896425), (5, 13737855), (15, 4579285), (19, 3615225), (25, 2747571), (43, 1597425), (57, 1205075), (59, 1164225), (75, 915857), (95, 723045), (129, 532475), (177, 388075), (215, 319485), (285, 241015), (295, 232845), (361, 190275), (475, 144609), (645, 106495), (817, 84075), (885, 77615), (1075, 63897), (1083, 63425), (1121, 61275), (1425, 48203), (1475, 46569), (1805, 38055), (2451, 28025), (2537, 27075), (3225, 21299), (3363, 20425), (4085, 16815), (4425, 15523), (5415, 12685), (5605, 12255), (7611, 9025)]