40080640

素因数分解:

$2^8\times 5^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 97094088

約数和(自身を除く): 57013448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 173, 181, 256, 320, 346, 362, 640, 692, 724, 865, 905, 1280, 1384, 1448, 1730, 1810, 2768, 2896, 3460, 3620, 5536, 5792, 6920, 7240, 11072, 11584, 13840, 14480, 22144, 23168, 27680, 28960, 31313, 44288, 46336, 55360, 57920, 62626, 110720, 115840, 125252, 156565, 221440, 231680, 250504, 313130, 501008, 626260, 1002016, 1252520, 2004032, 2505040, 4008064, 5010080, 8016128, 10020160, 20040320, 40080640]

約数ペア:

[(1, 40080640), (2, 20040320), (4, 10020160), (5, 8016128), (8, 5010080), (10, 4008064), (16, 2505040), (20, 2004032), (32, 1252520), (40, 1002016), (64, 626260), (80, 501008), (128, 313130), (160, 250504), (173, 231680), (181, 221440), (256, 156565), (320, 125252), (346, 115840), (362, 110720), (640, 62626), (692, 57920), (724, 55360), (865, 46336), (905, 44288), (1280, 31313), (1384, 28960), (1448, 27680), (1730, 23168), (1810, 22144), (2768, 14480), (2896, 13840), (3460, 11584), (3620, 11072), (5536, 7240), (5792, 6920)]