1578740740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:389

約数の個数: 96

約数和(自身を含む): 3459456000

約数和(自身を除く): 1880715260

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 103, 109, 158, 178, 206, 218, 316, 356, 395, 412, 436, 445, 515, 545, 790, 890, 1030, 1090, 1580, 1780, 2060, 2180, 7031, 8137, 8611, 9167, 9701, 11227, 14062, 16274, 17222, 18334, 19402, 22454, 28124, 32548, 34444, 35155, 36668, 38804, 40685, 43055, 44908, 45835, 48505, 56135, 70310, 81370, 86110, 91670, 97010, 112270, 140620, 162740, 172220, 183340, 194020, 224540, 724193, 766379, 886933, 999203, 1448386, 1532758, 1773866, 1998406, 2896772, 3065516, 3547732, 3620965, 3831895, 3996812, 4434665, 4996015, 7241930, 7663790, 8869330, 9992030, 14483860, 15327580, 17738660, 19984060, 78937037, 157874074, 315748148, 394685185, 789370370, 1578740740]

約数ペア:

[(1, 1578740740), (2, 789370370), (4, 394685185), (5, 315748148), (10, 157874074), (20, 78937037), (79, 19984060), (89, 17738660), (103, 15327580), (109, 14483860), (158, 9992030), (178, 8869330), (206, 7663790), (218, 7241930), (316, 4996015), (356, 4434665), (395, 3996812), (412, 3831895), (436, 3620965), (445, 3547732), (515, 3065516), (545, 2896772), (790, 1998406), (890, 1773866), (1030, 1532758), (1090, 1448386), (1580, 999203), (1780, 886933), (2060, 766379), (2180, 724193), (7031, 224540), (8137, 194020), (8611, 183340), (9167, 172220), (9701, 162740), (11227, 140620), (14062, 112270), (16274, 97010), (17222, 91670), (18334, 86110), (19402, 81370), (22454, 70310), (28124, 56135), (32548, 48505), (34444, 45835), (35155, 44908), (36668, 43055), (38804, 40685)]