21580480

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3967}}^1$

素因数の和:4001

約数の個数: 56

約数和(自身を含む): 54425088

約数和(自身を除く): 32844608

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, 3967, 5440, 7934, 15868, 19835, 31736, 39670, 63472, 67439, 79340, 126944, 134878, 158680, 253888, 269756, 317360, 337195, 539512, 634720, 674390, 1079024, 1269440, 1348780, 2158048, 2697560, 4316096, 5395120, 10790240, 21580480]

約数ペア:

[(1, 21580480), (2, 10790240), (4, 5395120), (5, 4316096), (8, 2697560), (10, 2158048), (16, 1348780), (17, 1269440), (20, 1079024), (32, 674390), (34, 634720), (40, 539512), (64, 337195), (68, 317360), (80, 269756), (85, 253888), (136, 158680), (160, 134878), (170, 126944), (272, 79340), (320, 67439), (340, 63472), (544, 39670), (680, 31736), (1088, 19835), (1360, 15868), (2720, 7934), (3967, 5440)]