20210717025

素因数分解:

$3^5\times 5^2\times {\mathrm{43}}^1\times {\mathrm{77369}}^1$

素因数の和:77437

約数の個数: 72

約数和(自身を含む): 38413895520

約数和(自身を除く): 18203178495

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 81, 129, 135, 215, 225, 243, 387, 405, 645, 675, 1075, 1161, 1215, 1935, 2025, 3225, 3483, 5805, 6075, 9675, 10449, 17415, 29025, 52245, 77369, 87075, 232107, 261225, 386845, 696321, 1160535, 1934225, 2088963, 3326867, 3481605, 5802675, 6266889, 9980601, 10444815, 16634335, 17408025, 18800667, 29941803, 31334445, 49903005, 52224075, 83171675, 89825409, 94003335, 149709015, 156672225, 249515025, 269476227, 449127045, 470016675, 748545075, 808428681, 1347381135, 2245635225, 4042143405, 6736905675, 20210717025]

約数ペア:

[(1, 20210717025), (3, 6736905675), (5, 4042143405), (9, 2245635225), (15, 1347381135), (25, 808428681), (27, 748545075), (43, 470016675), (45, 449127045), (75, 269476227), (81, 249515025), (129, 156672225), (135, 149709015), (215, 94003335), (225, 89825409), (243, 83171675), (387, 52224075), (405, 49903005), (645, 31334445), (675, 29941803), (1075, 18800667), (1161, 17408025), (1215, 16634335), (1935, 10444815), (2025, 9980601), (3225, 6266889), (3483, 5802675), (5805, 3481605), (6075, 3326867), (9675, 2088963), (10449, 1934225), (17415, 1160535), (29025, 696321), (52245, 386845), (77369, 261225), (87075, 232107)]