1142440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^4$

素因数の和:63

約数の個数: 40

約数和(自身を含む): 2784690

約数和(自身を除く): 1642250

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2197, 3380, 4394, 6760, 8788, 10985, 17576, 21970, 28561, 43940, 57122, 87880, 114244, 142805, 228488, 285610, 571220, 1142440]

約数ペア:

[(1, 1142440), (2, 571220), (4, 285610), (5, 228488), (8, 142805), (10, 114244), (13, 87880), (20, 57122), (26, 43940), (40, 28561), (52, 21970), (65, 17576), (104, 10985), (130, 8788), (169, 6760), (260, 4394), (338, 3380), (520, 2197), (676, 1690), (845, 1352)]