81252284

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 163511040

約数和(自身を除く): 82258756

約数列:

[1, 2, 4, 19, 23, 38, 43, 46, 47, 76, 86, 92, 94, 172, 188, 437, 529, 817, 874, 893, 989, 1058, 1081, 1634, 1748, 1786, 1978, 2021, 2116, 2162, 3268, 3572, 3956, 4042, 4324, 8084, 10051, 18791, 20102, 20539, 22747, 24863, 37582, 38399, 40204, 41078, 45494, 46483, 49726, 75164, 76798, 82156, 90988, 92966, 99452, 153596, 185932, 432193, 472397, 864386, 883177, 944794, 1069109, 1728772, 1766354, 1889588, 2138218, 3532708, 4276436, 20313071, 40626142, 81252284]

約数ペア:

[(1, 81252284), (2, 40626142), (4, 20313071), (19, 4276436), (23, 3532708), (38, 2138218), (43, 1889588), (46, 1766354), (47, 1728772), (76, 1069109), (86, 944794), (92, 883177), (94, 864386), (172, 472397), (188, 432193), (437, 185932), (529, 153596), (817, 99452), (874, 92966), (893, 90988), (989, 82156), (1058, 76798), (1081, 75164), (1634, 49726), (1748, 46483), (1786, 45494), (1978, 41078), (2021, 40204), (2116, 38399), (2162, 37582), (3268, 24863), (3572, 22747), (3956, 20539), (4042, 20102), (4324, 18791), (8084, 10051)]