71817525

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 141997856

約数和(自身を除く): 70180331

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 43, 45, 65, 75, 117, 129, 195, 215, 225, 325, 387, 559, 571, 585, 645, 975, 1075, 1677, 1713, 1935, 2795, 2855, 2925, 3225, 5031, 5139, 7423, 8385, 8565, 9675, 13975, 14275, 22269, 24553, 25155, 25695, 37115, 41925, 42825, 66807, 73659, 111345, 122765, 125775, 128475, 185575, 220977, 319189, 334035, 368295, 556725, 613825, 957567, 1104885, 1595945, 1670175, 1841475, 2872701, 4787835, 5524425, 7979725, 14363505, 23939175, 71817525]

約数ペア:

[(1, 71817525), (3, 23939175), (5, 14363505), (9, 7979725), (13, 5524425), (15, 4787835), (25, 2872701), (39, 1841475), (43, 1670175), (45, 1595945), (65, 1104885), (75, 957567), (117, 613825), (129, 556725), (195, 368295), (215, 334035), (225, 319189), (325, 220977), (387, 185575), (559, 128475), (571, 125775), (585, 122765), (645, 111345), (975, 73659), (1075, 66807), (1677, 42825), (1713, 41925), (1935, 37115), (2795, 25695), (2855, 25155), (2925, 24553), (3225, 22269), (5031, 14275), (5139, 13975), (7423, 9675), (8385, 8565)]