206811225

素因数分解:

$3^5\times 5^2\times {\mathrm{59}}^1\times {\mathrm{577}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 391329120

約数和(自身を除く): 184517895

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 59, 75, 81, 135, 177, 225, 243, 295, 405, 531, 577, 675, 885, 1215, 1475, 1593, 1731, 2025, 2655, 2885, 4425, 4779, 5193, 6075, 7965, 8655, 13275, 14337, 14425, 15579, 23895, 25965, 34043, 39825, 43275, 46737, 71685, 77895, 102129, 119475, 129825, 140211, 170215, 233685, 306387, 358425, 389475, 510645, 701055, 851075, 919161, 1168425, 1531935, 2553225, 2757483, 3505275, 4595805, 7659675, 8272449, 13787415, 22979025, 41362245, 68937075, 206811225]

約数ペア:

[(1, 206811225), (3, 68937075), (5, 41362245), (9, 22979025), (15, 13787415), (25, 8272449), (27, 7659675), (45, 4595805), (59, 3505275), (75, 2757483), (81, 2553225), (135, 1531935), (177, 1168425), (225, 919161), (243, 851075), (295, 701055), (405, 510645), (531, 389475), (577, 358425), (675, 306387), (885, 233685), (1215, 170215), (1475, 140211), (1593, 129825), (1731, 119475), (2025, 102129), (2655, 77895), (2885, 71685), (4425, 46737), (4779, 43275), (5193, 39825), (6075, 34043), (7965, 25965), (8655, 23895), (13275, 15579), (14337, 14425)]