397966875

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{11171}}^1$

素因数の和:11213

約数の個数: 40

約数和(自身を含む): 698026560

約数和(自身を除く): 300059685

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 625, 1425, 1875, 2375, 7125, 11171, 11875, 33513, 35625, 55855, 167565, 212249, 279275, 636747, 837825, 1061245, 1396375, 3183735, 4189125, 5306225, 6981875, 15918675, 20945625, 26531125, 79593375, 132655625, 397966875]

約数ペア:

[(1, 397966875), (3, 132655625), (5, 79593375), (15, 26531125), (19, 20945625), (25, 15918675), (57, 6981875), (75, 5306225), (95, 4189125), (125, 3183735), (285, 1396375), (375, 1061245), (475, 837825), (625, 636747), (1425, 279275), (1875, 212249), (2375, 167565), (7125, 55855), (11171, 35625), (11875, 33513)]