19121220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5591}}^1$

素因数の和:5625

約数の個数: 72

約数和(自身を含む): 61064640

約数和(自身を除く): 41943420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 5591, 11182, 16773, 22364, 27955, 33546, 50319, 55910, 67092, 83865, 100638, 106229, 111820, 167730, 201276, 212458, 251595, 318687, 335460, 424916, 503190, 531145, 637374, 956061, 1006380, 1062290, 1274748, 1593435, 1912122, 2124580, 3186870, 3824244, 4780305, 6373740, 9560610, 19121220]

約数ペア:

[(1, 19121220), (2, 9560610), (3, 6373740), (4, 4780305), (5, 3824244), (6, 3186870), (9, 2124580), (10, 1912122), (12, 1593435), (15, 1274748), (18, 1062290), (19, 1006380), (20, 956061), (30, 637374), (36, 531145), (38, 503190), (45, 424916), (57, 335460), (60, 318687), (76, 251595), (90, 212458), (95, 201276), (114, 167730), (171, 111820), (180, 106229), (190, 100638), (228, 83865), (285, 67092), (342, 55910), (380, 50319), (570, 33546), (684, 27955), (855, 22364), (1140, 16773), (1710, 11182), (3420, 5591)]