217395440

素因数分解:

$2^4\times 5^1\times {\mathrm{541}}^1\times {\mathrm{5023}}^1$

素因数の和:5577

約数の個数: 40

約数和(自身を含む): 506479488

約数和(自身を除く): 289084048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 541, 1082, 2164, 2705, 4328, 5023, 5410, 8656, 10046, 10820, 20092, 21640, 25115, 40184, 43280, 50230, 80368, 100460, 200920, 401840, 2717443, 5434886, 10869772, 13587215, 21739544, 27174430, 43479088, 54348860, 108697720, 217395440]

約数ペア:

[(1, 217395440), (2, 108697720), (4, 54348860), (5, 43479088), (8, 27174430), (10, 21739544), (16, 13587215), (20, 10869772), (40, 5434886), (80, 2717443), (541, 401840), (1082, 200920), (2164, 100460), (2705, 80368), (4328, 50230), (5023, 43280), (5410, 40184), (8656, 25115), (10046, 21640), (10820, 20092)]