213738375

素因数分解:

$3^1\times 5^3\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 370685952

約数和(自身を除く): 156947577

約数列:

[1, 3, 5, 15, 25, 47, 67, 75, 125, 141, 181, 201, 235, 335, 375, 543, 705, 905, 1005, 1175, 1675, 2715, 3149, 3525, 4525, 5025, 5875, 8375, 8507, 9447, 12127, 13575, 15745, 17625, 22625, 25125, 25521, 36381, 42535, 47235, 60635, 67875, 78725, 127605, 181905, 212675, 236175, 303175, 393625, 569969, 638025, 909525, 1063375, 1180875, 1515875, 1709907, 2849845, 3190125, 4547625, 8549535, 14249225, 42747675, 71246125, 213738375]

約数ペア:

[(1, 213738375), (3, 71246125), (5, 42747675), (15, 14249225), (25, 8549535), (47, 4547625), (67, 3190125), (75, 2849845), (125, 1709907), (141, 1515875), (181, 1180875), (201, 1063375), (235, 909525), (335, 638025), (375, 569969), (543, 393625), (705, 303175), (905, 236175), (1005, 212675), (1175, 181905), (1675, 127605), (2715, 78725), (3149, 67875), (3525, 60635), (4525, 47235), (5025, 42535), (5875, 36381), (8375, 25521), (8507, 25125), (9447, 22625), (12127, 17625), (13575, 15745)]