81775180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{1873}}^1$

素因数の和:1978

約数の個数: 48

約数和(自身を含む): 179454240

約数和(自身を除く): 97679060

約数列:

[1, 2, 4, 5, 10, 20, 37, 59, 74, 118, 148, 185, 236, 295, 370, 590, 740, 1180, 1873, 2183, 3746, 4366, 7492, 8732, 9365, 10915, 18730, 21830, 37460, 43660, 69301, 110507, 138602, 221014, 277204, 346505, 442028, 552535, 693010, 1105070, 1386020, 2210140, 4088759, 8177518, 16355036, 20443795, 40887590, 81775180]

約数ペア:

[(1, 81775180), (2, 40887590), (4, 20443795), (5, 16355036), (10, 8177518), (20, 4088759), (37, 2210140), (59, 1386020), (74, 1105070), (118, 693010), (148, 552535), (185, 442028), (236, 346505), (295, 277204), (370, 221014), (590, 138602), (740, 110507), (1180, 69301), (1873, 43660), (2183, 37460), (3746, 21830), (4366, 18730), (7492, 10915), (8732, 9365)]