20394675

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1$

素因数の和:609

約数の個数: 72

約数和(自身を含む): 43640064

約数和(自身を除く): 23245389

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 25, 35, 45, 63, 69, 75, 105, 115, 161, 175, 207, 225, 315, 345, 483, 525, 563, 575, 805, 1035, 1449, 1575, 1689, 1725, 2415, 2815, 3941, 4025, 5067, 5175, 7245, 8445, 11823, 12075, 12949, 14075, 19705, 25335, 35469, 36225, 38847, 42225, 59115, 64745, 90643, 98525, 116541, 126675, 177345, 194235, 271929, 295575, 323725, 453215, 582705, 815787, 886725, 971175, 1359645, 2266075, 2913525, 4078935, 6798225, 20394675]

約数ペア:

[(1, 20394675), (3, 6798225), (5, 4078935), (7, 2913525), (9, 2266075), (15, 1359645), (21, 971175), (23, 886725), (25, 815787), (35, 582705), (45, 453215), (63, 323725), (69, 295575), (75, 271929), (105, 194235), (115, 177345), (161, 126675), (175, 116541), (207, 98525), (225, 90643), (315, 64745), (345, 59115), (483, 42225), (525, 38847), (563, 36225), (575, 35469), (805, 25335), (1035, 19705), (1449, 14075), (1575, 12949), (1689, 12075), (1725, 11823), (2415, 8445), (2815, 7245), (3941, 5175), (4025, 5067)]