20498340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17981}}^1$

素因数の和:18012

約数の個数: 48

約数和(自身を含む): 60419520

約数和(自身を除く): 39921180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17981, 35962, 53943, 71924, 89905, 107886, 179810, 215772, 269715, 341639, 359620, 539430, 683278, 1024917, 1078860, 1366556, 1708195, 2049834, 3416390, 4099668, 5124585, 6832780, 10249170, 20498340]

約数ペア:

[(1, 20498340), (2, 10249170), (3, 6832780), (4, 5124585), (5, 4099668), (6, 3416390), (10, 2049834), (12, 1708195), (15, 1366556), (19, 1078860), (20, 1024917), (30, 683278), (38, 539430), (57, 359620), (60, 341639), (76, 269715), (95, 215772), (114, 179810), (190, 107886), (228, 89905), (285, 71924), (380, 53943), (570, 35962), (1140, 17981)]