1405014760

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1\times {\mathrm{859}}^1$

素因数の和:1370

約数の個数: 64

約数和(自身を含む): 3203740800

約数和(自身を除く): 1798726040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 397, 412, 515, 794, 824, 859, 1030, 1588, 1718, 1985, 2060, 3176, 3436, 3970, 4120, 4295, 6872, 7940, 8590, 15880, 17180, 34360, 40891, 81782, 88477, 163564, 176954, 204455, 327128, 341023, 353908, 408910, 442385, 682046, 707816, 817820, 884770, 1364092, 1635640, 1705115, 1769540, 2728184, 3410230, 3539080, 6820460, 13640920, 35125369, 70250738, 140501476, 175626845, 281002952, 351253690, 702507380, 1405014760]

約数ペア:

[(1, 1405014760), (2, 702507380), (4, 351253690), (5, 281002952), (8, 175626845), (10, 140501476), (20, 70250738), (40, 35125369), (103, 13640920), (206, 6820460), (397, 3539080), (412, 3410230), (515, 2728184), (794, 1769540), (824, 1705115), (859, 1635640), (1030, 1364092), (1588, 884770), (1718, 817820), (1985, 707816), (2060, 682046), (3176, 442385), (3436, 408910), (3970, 353908), (4120, 341023), (4295, 327128), (6872, 204455), (7940, 176954), (8590, 163564), (15880, 88477), (17180, 81782), (34360, 40891)]