20108450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{577}}^1$

素因数の和:647

約数の個数: 48

約数和(自身を含む): 40638024

約数和(自身を除く): 20529574

約数列:

[1, 2, 5, 10, 17, 25, 34, 41, 50, 82, 85, 170, 205, 410, 425, 577, 697, 850, 1025, 1154, 1394, 2050, 2885, 3485, 5770, 6970, 9809, 14425, 17425, 19618, 23657, 28850, 34850, 47314, 49045, 98090, 118285, 236570, 245225, 402169, 490450, 591425, 804338, 1182850, 2010845, 4021690, 10054225, 20108450]

約数ペア:

[(1, 20108450), (2, 10054225), (5, 4021690), (10, 2010845), (17, 1182850), (25, 804338), (34, 591425), (41, 490450), (50, 402169), (82, 245225), (85, 236570), (170, 118285), (205, 98090), (410, 49045), (425, 47314), (577, 34850), (697, 28850), (850, 23657), (1025, 19618), (1154, 17425), (1394, 14425), (2050, 9809), (2885, 6970), (3485, 5770)]