20064380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{397}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 50950368

約数和(自身を除く): 30885988

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 397, 532, 665, 722, 794, 1330, 1444, 1588, 1805, 1985, 2527, 2660, 2779, 3610, 3970, 5054, 5558, 7220, 7543, 7940, 10108, 11116, 12635, 13895, 15086, 25270, 27790, 30172, 37715, 50540, 52801, 55580, 75430, 105602, 143317, 150860, 211204, 264005, 286634, 528010, 573268, 716585, 1003219, 1056020, 1433170, 2006438, 2866340, 4012876, 5016095, 10032190, 20064380]

約数ペア:

[(1, 20064380), (2, 10032190), (4, 5016095), (5, 4012876), (7, 2866340), (10, 2006438), (14, 1433170), (19, 1056020), (20, 1003219), (28, 716585), (35, 573268), (38, 528010), (70, 286634), (76, 264005), (95, 211204), (133, 150860), (140, 143317), (190, 105602), (266, 75430), (361, 55580), (380, 52801), (397, 50540), (532, 37715), (665, 30172), (722, 27790), (794, 25270), (1330, 15086), (1444, 13895), (1588, 12635), (1805, 11116), (1985, 10108), (2527, 7940), (2660, 7543), (2779, 7220), (3610, 5558), (3970, 5054)]