1619440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:697

約数の個数: 40

約数和(自身を含む): 3892608

約数和(自身を除く): 2273168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 653, 1240, 1306, 2480, 2612, 3265, 5224, 6530, 10448, 13060, 20243, 26120, 40486, 52240, 80972, 101215, 161944, 202430, 323888, 404860, 809720, 1619440]

約数ペア:

[(1, 1619440), (2, 809720), (4, 404860), (5, 323888), (8, 202430), (10, 161944), (16, 101215), (20, 80972), (31, 52240), (40, 40486), (62, 26120), (80, 20243), (124, 13060), (155, 10448), (248, 6530), (310, 5224), (496, 3265), (620, 2612), (653, 2480), (1240, 1306)]