1218375

素因数分解:

$3^3\times 5^3\times {\mathrm{19}}^2$

素因数の和:62

約数の個数: 48

約数和(自身を含む): 2377440

約数和(自身を除く): 1159065

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 125, 135, 171, 225, 285, 361, 375, 475, 513, 675, 855, 1083, 1125, 1425, 1805, 2375, 2565, 3249, 3375, 4275, 5415, 7125, 9025, 9747, 12825, 16245, 21375, 27075, 45125, 48735, 64125, 81225, 135375, 243675, 406125, 1218375]

約数ペア:

[(1, 1218375), (3, 406125), (5, 243675), (9, 135375), (15, 81225), (19, 64125), (25, 48735), (27, 45125), (45, 27075), (57, 21375), (75, 16245), (95, 12825), (125, 9747), (135, 9025), (171, 7125), (225, 5415), (285, 4275), (361, 3375), (375, 3249), (475, 2565), (513, 2375), (675, 1805), (855, 1425), (1083, 1125)]