251595890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:472

約数の個数: 96

約数和(自身を含む): 573640704

約数和(自身を除く): 322044814

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 127, 130, 182, 245, 254, 311, 455, 490, 622, 635, 637, 889, 910, 1270, 1274, 1555, 1651, 1778, 2177, 3110, 3185, 3302, 4043, 4354, 4445, 6223, 6370, 8086, 8255, 8890, 10885, 11557, 12446, 15239, 16510, 20215, 21770, 23114, 28301, 30478, 31115, 39497, 40430, 56602, 57785, 62230, 76195, 78994, 80899, 115570, 141505, 152390, 161798, 197485, 198107, 276479, 283010, 394970, 396214, 404495, 513461, 552958, 808990, 990535, 1026922, 1382395, 1935353, 1981070, 2567305, 2764790, 3594227, 3870706, 5134610, 7188454, 9676765, 17971135, 19353530, 25159589, 35942270, 50319178, 125797945, 251595890]

約数ペア:

[(1, 251595890), (2, 125797945), (5, 50319178), (7, 35942270), (10, 25159589), (13, 19353530), (14, 17971135), (26, 9676765), (35, 7188454), (49, 5134610), (65, 3870706), (70, 3594227), (91, 2764790), (98, 2567305), (127, 1981070), (130, 1935353), (182, 1382395), (245, 1026922), (254, 990535), (311, 808990), (455, 552958), (490, 513461), (622, 404495), (635, 396214), (637, 394970), (889, 283010), (910, 276479), (1270, 198107), (1274, 197485), (1555, 161798), (1651, 152390), (1778, 141505), (2177, 115570), (3110, 80899), (3185, 78994), (3302, 76195), (4043, 62230), (4354, 57785), (4445, 56602), (6223, 40430), (6370, 39497), (8086, 31115), (8255, 30478), (8890, 28301), (10885, 23114), (11557, 21770), (12446, 20215), (15239, 16510)]