1640393025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{1409}}^1$

素因数の和:1503

約数の個数: 72

約数和(自身を含む): 2931017760

約数和(自身を除く): 1290624735

約数列:

[1, 3, 5, 15, 19, 25, 43, 57, 75, 95, 129, 215, 285, 361, 475, 645, 817, 1075, 1083, 1409, 1425, 1805, 2451, 3225, 4085, 4227, 5415, 7045, 9025, 12255, 15523, 20425, 21135, 26771, 27075, 35225, 46569, 60587, 61275, 77615, 80313, 105675, 133855, 181761, 232845, 302935, 388075, 401565, 508649, 669275, 908805, 1151153, 1164225, 1514675, 1525947, 2007825, 2543245, 3453459, 4544025, 5755765, 7629735, 12716225, 17267295, 21871907, 28778825, 38148675, 65615721, 86336475, 109359535, 328078605, 546797675, 1640393025]

約数ペア:

[(1, 1640393025), (3, 546797675), (5, 328078605), (15, 109359535), (19, 86336475), (25, 65615721), (43, 38148675), (57, 28778825), (75, 21871907), (95, 17267295), (129, 12716225), (215, 7629735), (285, 5755765), (361, 4544025), (475, 3453459), (645, 2543245), (817, 2007825), (1075, 1525947), (1083, 1514675), (1409, 1164225), (1425, 1151153), (1805, 908805), (2451, 669275), (3225, 508649), (4085, 401565), (4227, 388075), (5415, 302935), (7045, 232845), (9025, 181761), (12255, 133855), (15523, 105675), (20425, 80313), (21135, 77615), (26771, 61275), (27075, 60587), (35225, 46569)]