81095820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103969}}^1$

素因数の和:103994

約数の個数: 48

約数和(自身を含む): 244537440

約数和(自身を除く): 163441620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 103969, 207938, 311907, 415876, 519845, 623814, 1039690, 1247628, 1351597, 1559535, 2079380, 2703194, 3119070, 4054791, 5406388, 6238140, 6757985, 8109582, 13515970, 16219164, 20273955, 27031940, 40547910, 81095820]

約数ペア:

[(1, 81095820), (2, 40547910), (3, 27031940), (4, 20273955), (5, 16219164), (6, 13515970), (10, 8109582), (12, 6757985), (13, 6238140), (15, 5406388), (20, 4054791), (26, 3119070), (30, 2703194), (39, 2079380), (52, 1559535), (60, 1351597), (65, 1247628), (78, 1039690), (130, 623814), (156, 519845), (195, 415876), (260, 311907), (390, 207938), (780, 103969)]