213631725

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{761}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 374172480

約数和(自身を除く): 160540755

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 197, 285, 475, 591, 761, 985, 1425, 2283, 2955, 3743, 3805, 4925, 11229, 11415, 14459, 14775, 18715, 19025, 43377, 56145, 57075, 72295, 93575, 149917, 216885, 280725, 361475, 449751, 749585, 1084425, 2248755, 2848423, 3747925, 8545269, 11243775, 14242115, 42726345, 71210575, 213631725]

約数ペア:

[(1, 213631725), (3, 71210575), (5, 42726345), (15, 14242115), (19, 11243775), (25, 8545269), (57, 3747925), (75, 2848423), (95, 2248755), (197, 1084425), (285, 749585), (475, 449751), (591, 361475), (761, 280725), (985, 216885), (1425, 149917), (2283, 93575), (2955, 72295), (3743, 57075), (3805, 56145), (4925, 43377), (11229, 19025), (11415, 18715), (14459, 14775)]