81993360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17981}}^1$

素因数の和:18016

約数の個数: 80

約数和(自身を含む): 267572160

約数和(自身を除く): 185578800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 17981, 35962, 53943, 71924, 89905, 107886, 143848, 179810, 215772, 269715, 287696, 341639, 359620, 431544, 539430, 683278, 719240, 863088, 1024917, 1078860, 1366556, 1438480, 1708195, 2049834, 2157720, 2733112, 3416390, 4099668, 4315440, 5124585, 5466224, 6832780, 8199336, 10249170, 13665560, 16398672, 20498340, 27331120, 40996680, 81993360]

約数ペア:

[(1, 81993360), (2, 40996680), (3, 27331120), (4, 20498340), (5, 16398672), (6, 13665560), (8, 10249170), (10, 8199336), (12, 6832780), (15, 5466224), (16, 5124585), (19, 4315440), (20, 4099668), (24, 3416390), (30, 2733112), (38, 2157720), (40, 2049834), (48, 1708195), (57, 1438480), (60, 1366556), (76, 1078860), (80, 1024917), (95, 863088), (114, 719240), (120, 683278), (152, 539430), (190, 431544), (228, 359620), (240, 341639), (285, 287696), (304, 269715), (380, 215772), (456, 179810), (570, 143848), (760, 107886), (912, 89905), (1140, 71924), (1520, 53943), (2280, 35962), (4560, 17981)]