20002880

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3677}}^1$

素因数の和:3711

約数の個数: 56

約数和(自身を含む): 50447448

約数和(自身を除く): 30444568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3677, 5440, 7354, 14708, 18385, 29416, 36770, 58832, 62509, 73540, 117664, 125018, 147080, 235328, 250036, 294160, 312545, 500072, 588320, 625090, 1000144, 1176640, 1250180, 2000288, 2500360, 4000576, 5000720, 10001440, 20002880]

約数ペア:

[(1, 20002880), (2, 10001440), (4, 5000720), (5, 4000576), (8, 2500360), (10, 2000288), (16, 1250180), (17, 1176640), (20, 1000144), (32, 625090), (34, 588320), (40, 500072), (64, 312545), (68, 294160), (80, 250036), (85, 235328), (136, 147080), (160, 125018), (170, 117664), (272, 73540), (320, 62509), (340, 58832), (544, 36770), (680, 29416), (1088, 18385), (1360, 14708), (2720, 7354), (3677, 5440)]