278789035

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 425502720

約数和(自身を除く): 146713685

約数列:

[1, 5, 7, 17, 29, 35, 85, 107, 119, 145, 151, 203, 493, 535, 595, 749, 755, 1015, 1057, 1819, 2465, 2567, 3103, 3451, 3745, 4379, 5285, 9095, 12733, 12835, 15515, 16157, 17255, 17969, 21721, 21895, 30653, 52751, 63665, 74443, 80785, 89845, 108605, 113099, 153265, 263755, 274669, 369257, 372215, 468553, 521101, 565495, 1373345, 1846285, 1922683, 2342765, 2605505, 3279871, 7965401, 9613415, 16399355, 39827005, 55757807, 278789035]

約数ペア:

[(1, 278789035), (5, 55757807), (7, 39827005), (17, 16399355), (29, 9613415), (35, 7965401), (85, 3279871), (107, 2605505), (119, 2342765), (145, 1922683), (151, 1846285), (203, 1373345), (493, 565495), (535, 521101), (595, 468553), (749, 372215), (755, 369257), (1015, 274669), (1057, 263755), (1819, 153265), (2465, 113099), (2567, 108605), (3103, 89845), (3451, 80785), (3745, 74443), (4379, 63665), (5285, 52751), (9095, 30653), (12733, 21895), (12835, 21721), (15515, 17969), (16157, 17255)]