20160981220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1\times {\mathrm{42989}}^1$

素因数の和:43308

約数の個数: 48

約数和(自身を含む): 42900580800

約数和(自身を除く): 22739599580

約数列:

[1, 2, 4, 5, 10, 20, 131, 179, 262, 358, 524, 655, 716, 895, 1310, 1790, 2620, 3580, 23449, 42989, 46898, 85978, 93796, 117245, 171956, 214945, 234490, 429890, 468980, 859780, 5631559, 7695031, 11263118, 15390062, 22526236, 28157795, 30780124, 38475155, 56315590, 76950310, 112631180, 153900620, 1008049061, 2016098122, 4032196244, 5040245305, 10080490610, 20160981220]

約数ペア:

[(1, 20160981220), (2, 10080490610), (4, 5040245305), (5, 4032196244), (10, 2016098122), (20, 1008049061), (131, 153900620), (179, 112631180), (262, 76950310), (358, 56315590), (524, 38475155), (655, 30780124), (716, 28157795), (895, 22526236), (1310, 15390062), (1790, 11263118), (2620, 7695031), (3580, 5631559), (23449, 859780), (42989, 468980), (46898, 429890), (85978, 234490), (93796, 214945), (117245, 171956)]