81770870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{13883}}^1$

素因数の和:13940

約数の個数: 32

約数和(自身を含む): 159943680

約数和(自身を除く): 78172810

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 5890, 13883, 27766, 69415, 138830, 263777, 430373, 527554, 860746, 1318885, 2151865, 2637770, 4303730, 8177087, 16354174, 40885435, 81770870]

約数ペア:

[(1, 81770870), (2, 40885435), (5, 16354174), (10, 8177087), (19, 4303730), (31, 2637770), (38, 2151865), (62, 1318885), (95, 860746), (155, 527554), (190, 430373), (310, 263777), (589, 138830), (1178, 69415), (2945, 27766), (5890, 13883)]