839800180

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{2053}}^1$

素因数の和:2356

約数の個数: 48

約数和(自身を含む): 1789888464

約数和(自身を除く): 950088284

約数列:

[1, 2, 4, 5, 10, 20, 113, 181, 226, 362, 452, 565, 724, 905, 1130, 1810, 2053, 2260, 3620, 4106, 8212, 10265, 20453, 20530, 40906, 41060, 81812, 102265, 204530, 231989, 371593, 409060, 463978, 743186, 927956, 1159945, 1486372, 1857965, 2319890, 3715930, 4639780, 7431860, 41990009, 83980018, 167960036, 209950045, 419900090, 839800180]

約数ペア:

[(1, 839800180), (2, 419900090), (4, 209950045), (5, 167960036), (10, 83980018), (20, 41990009), (113, 7431860), (181, 4639780), (226, 3715930), (362, 2319890), (452, 1857965), (565, 1486372), (724, 1159945), (905, 927956), (1130, 743186), (1810, 463978), (2053, 409060), (2260, 371593), (3620, 231989), (4106, 204530), (8212, 102265), (10265, 81812), (20453, 41060), (20530, 40906)]