18405520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1429}}^1$

素因数の和:1472

約数の個数: 80

約数和(自身を含む): 51068160

約数和(自身を除く): 32662640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1429, 1610, 1840, 2576, 2858, 3220, 5716, 6440, 7145, 10003, 11432, 12880, 14290, 20006, 22864, 28580, 32867, 40012, 50015, 57160, 65734, 80024, 100030, 114320, 131468, 160048, 164335, 200060, 230069, 262936, 328670, 400120, 460138, 525872, 657340, 800240, 920276, 1150345, 1314680, 1840552, 2300690, 2629360, 3681104, 4601380, 9202760, 18405520]

約数ペア:

[(1, 18405520), (2, 9202760), (4, 4601380), (5, 3681104), (7, 2629360), (8, 2300690), (10, 1840552), (14, 1314680), (16, 1150345), (20, 920276), (23, 800240), (28, 657340), (35, 525872), (40, 460138), (46, 400120), (56, 328670), (70, 262936), (80, 230069), (92, 200060), (112, 164335), (115, 160048), (140, 131468), (161, 114320), (184, 100030), (230, 80024), (280, 65734), (322, 57160), (368, 50015), (460, 40012), (560, 32867), (644, 28580), (805, 22864), (920, 20006), (1288, 14290), (1429, 12880), (1610, 11432), (1840, 10003), (2576, 7145), (2858, 6440), (3220, 5716)]