31871565

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 63202464

約数和(自身を除く): 31330899

約数列:

[1, 3, 5, 9, 11, 15, 31, 33, 45, 55, 67, 93, 99, 155, 165, 201, 279, 335, 341, 465, 495, 603, 737, 961, 1005, 1023, 1395, 1705, 2077, 2211, 2883, 3015, 3069, 3685, 4805, 5115, 6231, 6633, 8649, 10385, 10571, 11055, 14415, 15345, 18693, 22847, 31155, 31713, 33165, 43245, 52855, 64387, 68541, 93465, 95139, 114235, 158565, 193161, 205623, 321935, 342705, 475695, 579483, 708257, 965805, 1028115, 2124771, 2897415, 3541285, 6374313, 10623855, 31871565]

約数ペア:

[(1, 31871565), (3, 10623855), (5, 6374313), (9, 3541285), (11, 2897415), (15, 2124771), (31, 1028115), (33, 965805), (45, 708257), (55, 579483), (67, 475695), (93, 342705), (99, 321935), (155, 205623), (165, 193161), (201, 158565), (279, 114235), (335, 95139), (341, 93465), (465, 68541), (495, 64387), (603, 52855), (737, 43245), (961, 33165), (1005, 31713), (1023, 31155), (1395, 22847), (1705, 18693), (2077, 15345), (2211, 14415), (2883, 11055), (3015, 10571), (3069, 10385), (3685, 8649), (4805, 6633), (5115, 6231)]