207171940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 458738280

約数和(自身を除く): 251566340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 109, 113, 116, 145, 218, 226, 290, 436, 452, 545, 565, 580, 841, 1090, 1130, 1682, 2180, 2260, 3161, 3277, 3364, 4205, 6322, 6554, 8410, 12317, 12644, 13108, 15805, 16385, 16820, 24634, 31610, 32770, 49268, 61585, 63220, 65540, 91669, 95033, 123170, 183338, 190066, 246340, 357193, 366676, 380132, 458345, 475165, 714386, 916690, 950330, 1428772, 1785965, 1833380, 1900660, 3571930, 7143860, 10358597, 20717194, 41434388, 51792985, 103585970, 207171940]

約数ペア:

[(1, 207171940), (2, 103585970), (4, 51792985), (5, 41434388), (10, 20717194), (20, 10358597), (29, 7143860), (58, 3571930), (109, 1900660), (113, 1833380), (116, 1785965), (145, 1428772), (218, 950330), (226, 916690), (290, 714386), (436, 475165), (452, 458345), (545, 380132), (565, 366676), (580, 357193), (841, 246340), (1090, 190066), (1130, 183338), (1682, 123170), (2180, 95033), (2260, 91669), (3161, 65540), (3277, 63220), (3364, 61585), (4205, 49268), (6322, 32770), (6554, 31610), (8410, 24634), (12317, 16820), (12644, 16385), (13108, 15805)]