23803940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 28087900

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 311, 356, 430, 445, 622, 860, 890, 1244, 1555, 1780, 3110, 3827, 6220, 7654, 13373, 15308, 19135, 26746, 27679, 38270, 53492, 55358, 66865, 76540, 110716, 133730, 138395, 267460, 276790, 553580, 1190197, 2380394, 4760788, 5950985, 11901970, 23803940]

約数ペア:

[(1, 23803940), (2, 11901970), (4, 5950985), (5, 4760788), (10, 2380394), (20, 1190197), (43, 553580), (86, 276790), (89, 267460), (172, 138395), (178, 133730), (215, 110716), (311, 76540), (356, 66865), (430, 55358), (445, 53492), (622, 38270), (860, 27679), (890, 26746), (1244, 19135), (1555, 15308), (1780, 13373), (3110, 7654), (3827, 6220)]