253711220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{6997}}^1$

素因数の和:7057

約数の個数: 72

約数和(自身を含む): 636622056

約数和(自身を除く): 382910836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1295, 1813, 2590, 3626, 5180, 6997, 7252, 9065, 13994, 18130, 27988, 34985, 36260, 48979, 69970, 97958, 139940, 195916, 244895, 258889, 342853, 489790, 517778, 685706, 979580, 1035556, 1294445, 1371412, 1714265, 1812223, 2588890, 3428530, 3624446, 5177780, 6857060, 7248892, 9061115, 12685561, 18122230, 25371122, 36244460, 50742244, 63427805, 126855610, 253711220]

約数ペア:

[(1, 253711220), (2, 126855610), (4, 63427805), (5, 50742244), (7, 36244460), (10, 25371122), (14, 18122230), (20, 12685561), (28, 9061115), (35, 7248892), (37, 6857060), (49, 5177780), (70, 3624446), (74, 3428530), (98, 2588890), (140, 1812223), (148, 1714265), (185, 1371412), (196, 1294445), (245, 1035556), (259, 979580), (370, 685706), (490, 517778), (518, 489790), (740, 342853), (980, 258889), (1036, 244895), (1295, 195916), (1813, 139940), (2590, 97958), (3626, 69970), (5180, 48979), (6997, 36260), (7252, 34985), (9065, 27988), (13994, 18130)]