20452912

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 40979520

約数和(自身を除く): 20526608

約数列:

[1, 2, 4, 8, 16, 53, 89, 106, 178, 212, 271, 356, 424, 542, 712, 848, 1084, 1424, 2168, 4336, 4717, 9434, 14363, 18868, 24119, 28726, 37736, 48238, 57452, 75472, 96476, 114904, 192952, 229808, 385904, 1278307, 2556614, 5113228, 10226456, 20452912]

約数ペア:

[(1, 20452912), (2, 10226456), (4, 5113228), (8, 2556614), (16, 1278307), (53, 385904), (89, 229808), (106, 192952), (178, 114904), (212, 96476), (271, 75472), (356, 57452), (424, 48238), (542, 37736), (712, 28726), (848, 24119), (1084, 18868), (1424, 14363), (2168, 9434), (4336, 4717)]