20217940090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{7841}}^1$

素因数の和:8239

約数の個数: 64

約数和(自身を含む): 39365585280

約数和(自身を除く): 19147645190

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 331, 410, 662, 779, 1558, 1655, 3310, 3895, 6289, 7790, 7841, 12578, 13571, 15682, 27142, 31445, 39205, 62890, 67855, 78410, 135710, 148979, 257849, 297958, 321481, 515698, 642962, 744895, 1289245, 1489790, 1607405, 2578490, 2595371, 3214810, 5190742, 6108139, 12216278, 12976855, 25953710, 30540695, 49312049, 61081390, 98624098, 106410211, 212820422, 246560245, 493120490, 532051055, 1064102110, 2021794009, 4043588018, 10108970045, 20217940090]

約数ペア:

[(1, 20217940090), (2, 10108970045), (5, 4043588018), (10, 2021794009), (19, 1064102110), (38, 532051055), (41, 493120490), (82, 246560245), (95, 212820422), (190, 106410211), (205, 98624098), (331, 61081390), (410, 49312049), (662, 30540695), (779, 25953710), (1558, 12976855), (1655, 12216278), (3310, 6108139), (3895, 5190742), (6289, 3214810), (7790, 2595371), (7841, 2578490), (12578, 1607405), (13571, 1489790), (15682, 1289245), (27142, 744895), (31445, 642962), (39205, 515698), (62890, 321481), (67855, 297958), (78410, 257849), (135710, 148979)]