208428720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{868453}}^1$

素因数の和:868469

約数の個数: 40

約数和(自身を含む): 646129776

約数和(自身を除く): 437701056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 868453, 1736906, 2605359, 3473812, 4342265, 5210718, 6947624, 8684530, 10421436, 13026795, 13895248, 17369060, 20842872, 26053590, 34738120, 41685744, 52107180, 69476240, 104214360, 208428720]

約数ペア:

[(1, 208428720), (2, 104214360), (3, 69476240), (4, 52107180), (5, 41685744), (6, 34738120), (8, 26053590), (10, 20842872), (12, 17369060), (15, 13895248), (16, 13026795), (20, 10421436), (24, 8684530), (30, 6947624), (40, 5210718), (48, 4342265), (60, 3473812), (80, 2605359), (120, 1736906), (240, 868453)]