20213608725

素因数分解:

$3^5\times 5^2\times {\mathrm{1163}}^1\times {\mathrm{2861}}^1$

素因数の和:4049

約数の個数: 72

約数和(自身を含む): 37591156512

約数和(自身を除く): 17377547787

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1163, 1215, 2025, 2861, 3489, 5815, 6075, 8583, 10467, 14305, 17445, 25749, 29075, 31401, 42915, 52335, 71525, 77247, 87225, 94203, 128745, 157005, 214575, 231741, 261675, 282609, 386235, 471015, 643725, 695223, 785025, 1158705, 1413045, 1931175, 2355075, 3327343, 3476115, 5793525, 7065225, 9982029, 16636715, 17380575, 29946087, 49910145, 83183575, 89838261, 149730435, 249550725, 269514783, 449191305, 748652175, 808544349, 1347573915, 2245956525, 4042721745, 6737869575, 20213608725]

約数ペア:

[(1, 20213608725), (3, 6737869575), (5, 4042721745), (9, 2245956525), (15, 1347573915), (25, 808544349), (27, 748652175), (45, 449191305), (75, 269514783), (81, 249550725), (135, 149730435), (225, 89838261), (243, 83183575), (405, 49910145), (675, 29946087), (1163, 17380575), (1215, 16636715), (2025, 9982029), (2861, 7065225), (3489, 5793525), (5815, 3476115), (6075, 3327343), (8583, 2355075), (10467, 1931175), (14305, 1413045), (17445, 1158705), (25749, 785025), (29075, 695223), (31401, 643725), (42915, 471015), (52335, 386235), (71525, 282609), (77247, 261675), (87225, 231741), (94203, 214575), (128745, 157005)]