193199420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1\times {\mathrm{349}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 412776000

約数和(自身を除く): 219576580

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 311, 349, 356, 445, 622, 698, 890, 1244, 1396, 1555, 1745, 1780, 3110, 3490, 6220, 6980, 27679, 31061, 55358, 62122, 108539, 110716, 124244, 138395, 155305, 217078, 276790, 310610, 434156, 542695, 553580, 621220, 1085390, 2170780, 9659971, 19319942, 38639884, 48299855, 96599710, 193199420]

約数ペア:

[(1, 193199420), (2, 96599710), (4, 48299855), (5, 38639884), (10, 19319942), (20, 9659971), (89, 2170780), (178, 1085390), (311, 621220), (349, 553580), (356, 542695), (445, 434156), (622, 310610), (698, 276790), (890, 217078), (1244, 155305), (1396, 138395), (1555, 124244), (1745, 110716), (1780, 108539), (3110, 62122), (3490, 55358), (6220, 31061), (6980, 27679)]