79918540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5039}}^1$

素因数の和:5122

約数の個数: 48

約数和(自身を含む): 183738240

約数和(自身を除く): 103819700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 5039, 7930, 10078, 15860, 20156, 25195, 50390, 65507, 100780, 131014, 262028, 307379, 327535, 614758, 655070, 1229516, 1310140, 1536895, 3073790, 3995927, 6147580, 7991854, 15983708, 19979635, 39959270, 79918540]

約数ペア:

[(1, 79918540), (2, 39959270), (4, 19979635), (5, 15983708), (10, 7991854), (13, 6147580), (20, 3995927), (26, 3073790), (52, 1536895), (61, 1310140), (65, 1229516), (122, 655070), (130, 614758), (244, 327535), (260, 307379), (305, 262028), (610, 131014), (793, 100780), (1220, 65507), (1586, 50390), (3172, 25195), (3965, 20156), (5039, 15860), (7930, 10078)]