20185451325

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{363211}}^1$

素因数の和:363259

約数の個数: 72

約数和(自身を含む): 40984842080

約数和(自身を除く): 20799390755

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 75, 95, 117, 171, 195, 225, 247, 285, 325, 475, 585, 741, 855, 975, 1235, 1425, 2223, 2925, 3705, 4275, 6175, 11115, 18525, 55575, 363211, 1089633, 1816055, 3268899, 4721743, 5448165, 6901009, 9080275, 14165229, 16344495, 20703027, 23608715, 27240825, 34505045, 42495687, 62109081, 70826145, 81722475, 89713117, 103515135, 118043575, 172525225, 212478435, 269139351, 310545405, 354130725, 448565585, 517575675, 807418053, 1062392175, 1345696755, 1552727025, 2242827925, 4037090265, 6728483775, 20185451325]

約数ペア:

[(1, 20185451325), (3, 6728483775), (5, 4037090265), (9, 2242827925), (13, 1552727025), (15, 1345696755), (19, 1062392175), (25, 807418053), (39, 517575675), (45, 448565585), (57, 354130725), (65, 310545405), (75, 269139351), (95, 212478435), (117, 172525225), (171, 118043575), (195, 103515135), (225, 89713117), (247, 81722475), (285, 70826145), (325, 62109081), (475, 42495687), (585, 34505045), (741, 27240825), (855, 23608715), (975, 20703027), (1235, 16344495), (1425, 14165229), (2223, 9080275), (2925, 6901009), (3705, 5448165), (4275, 4721743), (6175, 3268899), (11115, 1816055), (18525, 1089633), (55575, 363211)]