19401040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7823}}^1$

素因数の和:7867

約数の個数: 40

約数和(自身を含む): 46568448

約数和(自身を除く): 27167408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7823, 15646, 31292, 39115, 62584, 78230, 125168, 156460, 242513, 312920, 485026, 625840, 970052, 1212565, 1940104, 2425130, 3880208, 4850260, 9700520, 19401040]

約数ペア:

[(1, 19401040), (2, 9700520), (4, 4850260), (5, 3880208), (8, 2425130), (10, 1940104), (16, 1212565), (20, 970052), (31, 625840), (40, 485026), (62, 312920), (80, 242513), (124, 156460), (155, 125168), (248, 78230), (310, 62584), (496, 39115), (620, 31292), (1240, 15646), (2480, 7823)]