620615515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 891596160

約数和(自身を除く): 270980645

約数列:

[1, 5, 13, 17, 29, 65, 85, 107, 145, 181, 221, 377, 493, 535, 905, 1105, 1391, 1819, 1885, 2353, 2465, 3077, 3103, 5249, 6409, 6955, 9095, 11765, 15385, 15515, 19367, 23647, 26245, 32045, 40001, 40339, 52751, 68237, 89233, 96835, 118235, 200005, 201695, 251771, 263755, 329239, 341185, 446165, 561643, 685763, 1160029, 1258855, 1646195, 2808215, 3428815, 4280107, 5800145, 7301359, 9547931, 21400535, 36506795, 47739655, 124123103, 620615515]

約数ペア:

[(1, 620615515), (5, 124123103), (13, 47739655), (17, 36506795), (29, 21400535), (65, 9547931), (85, 7301359), (107, 5800145), (145, 4280107), (181, 3428815), (221, 2808215), (377, 1646195), (493, 1258855), (535, 1160029), (905, 685763), (1105, 561643), (1391, 446165), (1819, 341185), (1885, 329239), (2353, 263755), (2465, 251771), (3077, 201695), (3103, 200005), (5249, 118235), (6409, 96835), (6955, 89233), (9095, 68237), (11765, 52751), (15385, 40339), (15515, 40001), (19367, 32045), (23647, 26245)]