489356720

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{19543}}^1$

素因数の和:19869

約数の個数: 40

約数和(自身を含む): 1141447776

約数和(自身を除く): 652091056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 2504, 3130, 5008, 6260, 12520, 19543, 25040, 39086, 78172, 97715, 156344, 195430, 312688, 390860, 781720, 1563440, 6116959, 12233918, 24467836, 30584795, 48935672, 61169590, 97871344, 122339180, 244678360, 489356720]

約数ペア:

[(1, 489356720), (2, 244678360), (4, 122339180), (5, 97871344), (8, 61169590), (10, 48935672), (16, 30584795), (20, 24467836), (40, 12233918), (80, 6116959), (313, 1563440), (626, 781720), (1252, 390860), (1565, 312688), (2504, 195430), (3130, 156344), (5008, 97715), (6260, 78172), (12520, 39086), (19543, 25040)]