66400725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2741}}^1$

素因数の和:2790

約数の個数: 48

約数和(自身を含む): 122402880

約数和(自身を除く): 56002155

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 255, 285, 323, 425, 475, 969, 1275, 1425, 1615, 2741, 4845, 8075, 8223, 13705, 24225, 41115, 46597, 52079, 68525, 139791, 156237, 205575, 232985, 260395, 698955, 781185, 885343, 1164925, 1301975, 2656029, 3494775, 3905925, 4426715, 13280145, 22133575, 66400725]

約数ペア:

[(1, 66400725), (3, 22133575), (5, 13280145), (15, 4426715), (17, 3905925), (19, 3494775), (25, 2656029), (51, 1301975), (57, 1164925), (75, 885343), (85, 781185), (95, 698955), (255, 260395), (285, 232985), (323, 205575), (425, 156237), (475, 139791), (969, 68525), (1275, 52079), (1425, 46597), (1615, 41115), (2741, 24225), (4845, 13705), (8075, 8223)]