20807557425

素因数分解:

$3^4\times 5^2\times {\mathrm{2671}}^1\times {\mathrm{3847}}^1$

素因数の和:6540

約数の個数: 60

約数和(自身を含む): 38567241856

約数和(自身を除く): 17759684431

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 2671, 3847, 8013, 11541, 13355, 19235, 24039, 34623, 40065, 57705, 66775, 72117, 96175, 103869, 120195, 173115, 200325, 216351, 288525, 311607, 360585, 519345, 600975, 865575, 1081755, 1558035, 1802925, 2596725, 5408775, 7790175, 10275337, 30826011, 51376685, 92478033, 154130055, 256883425, 277434099, 462390165, 770650275, 832302297, 1387170495, 2311950825, 4161511485, 6935852475, 20807557425]

約数ペア:

[(1, 20807557425), (3, 6935852475), (5, 4161511485), (9, 2311950825), (15, 1387170495), (25, 832302297), (27, 770650275), (45, 462390165), (75, 277434099), (81, 256883425), (135, 154130055), (225, 92478033), (405, 51376685), (675, 30826011), (2025, 10275337), (2671, 7790175), (3847, 5408775), (8013, 2596725), (11541, 1802925), (13355, 1558035), (19235, 1081755), (24039, 865575), (34623, 600975), (40065, 519345), (57705, 360585), (66775, 311607), (72117, 288525), (96175, 216351), (103869, 200325), (120195, 173115)]