19723460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 23459260

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 359, 410, 670, 718, 820, 1340, 1436, 1795, 2747, 3590, 5494, 7180, 10988, 13735, 14719, 24053, 27470, 29438, 48106, 54940, 58876, 73595, 96212, 120265, 147190, 240530, 294380, 481060, 986173, 1972346, 3944692, 4930865, 9861730, 19723460]

約数ペア:

[(1, 19723460), (2, 9861730), (4, 4930865), (5, 3944692), (10, 1972346), (20, 986173), (41, 481060), (67, 294380), (82, 240530), (134, 147190), (164, 120265), (205, 96212), (268, 73595), (335, 58876), (359, 54940), (410, 48106), (670, 29438), (718, 27470), (820, 24053), (1340, 14719), (1436, 13735), (1795, 10988), (2747, 7180), (3590, 5494)]