65675440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20023}}^1$

素因数の和:20077

約数の個数: 40

約数和(自身を含む): 156427488

約数和(自身を除く): 90752048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 20023, 40046, 80092, 100115, 160184, 200230, 320368, 400460, 800920, 820943, 1601840, 1641886, 3283772, 4104715, 6567544, 8209430, 13135088, 16418860, 32837720, 65675440]

約数ペア:

[(1, 65675440), (2, 32837720), (4, 16418860), (5, 13135088), (8, 8209430), (10, 6567544), (16, 4104715), (20, 3283772), (40, 1641886), (41, 1601840), (80, 820943), (82, 800920), (164, 400460), (205, 320368), (328, 200230), (410, 160184), (656, 100115), (820, 80092), (1640, 40046), (3280, 20023)]