820199260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{14929}}^1$

素因数の和:15046

約数の個数: 48

約数和(自身を含む): 1790883360

約数和(自身を除く): 970684100

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 410, 670, 820, 1340, 2747, 5494, 10988, 13735, 14929, 27470, 29858, 54940, 59716, 74645, 149290, 298580, 612089, 1000243, 1224178, 2000486, 2448356, 3060445, 4000972, 5001215, 6120890, 10002430, 12241780, 20004860, 41009963, 82019926, 164039852, 205049815, 410099630, 820199260]

約数ペア:

[(1, 820199260), (2, 410099630), (4, 205049815), (5, 164039852), (10, 82019926), (20, 41009963), (41, 20004860), (67, 12241780), (82, 10002430), (134, 6120890), (164, 5001215), (205, 4000972), (268, 3060445), (335, 2448356), (410, 2000486), (670, 1224178), (820, 1000243), (1340, 612089), (2747, 298580), (5494, 149290), (10988, 74645), (13735, 59716), (14929, 54940), (27470, 29858)]