19985011380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{3137}}^1\times {\mathrm{35393}}^1$

素因数の和:38545

約数の個数: 72

約数和(自身を含む): 60642239112

約数和(自身を除く): 40657227732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 3137, 6274, 9411, 12548, 15685, 18822, 28233, 31370, 35393, 37644, 47055, 56466, 62740, 70786, 94110, 106179, 112932, 141165, 141572, 176965, 188220, 212358, 282330, 318537, 353930, 424716, 530895, 564660, 637074, 707860, 1061790, 1274148, 1592685, 2123580, 3185370, 6370740, 111027841, 222055682, 333083523, 444111364, 555139205, 666167046, 999250569, 1110278410, 1332334092, 1665417615, 1998501138, 2220556820, 3330835230, 3997002276, 4996252845, 6661670460, 9992505690, 19985011380]

約数ペア:

[(1, 19985011380), (2, 9992505690), (3, 6661670460), (4, 4996252845), (5, 3997002276), (6, 3330835230), (9, 2220556820), (10, 1998501138), (12, 1665417615), (15, 1332334092), (18, 1110278410), (20, 999250569), (30, 666167046), (36, 555139205), (45, 444111364), (60, 333083523), (90, 222055682), (180, 111027841), (3137, 6370740), (6274, 3185370), (9411, 2123580), (12548, 1592685), (15685, 1274148), (18822, 1061790), (28233, 707860), (31370, 637074), (35393, 564660), (37644, 530895), (47055, 424716), (56466, 353930), (62740, 318537), (70786, 282330), (94110, 212358), (106179, 188220), (112932, 176965), (141165, 141572)]