81656400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{9721}}^1$

素因数の和:9749

約数の個数: 120

約数和(自身を含む): 298970944

約数和(自身を除く): 217314544

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2800, 4200, 8400, 9721, 19442, 29163, 38884, 48605, 58326, 68047, 77768, 97210, 116652, 136094, 145815, 155536, 194420, 204141, 233304, 243025, 272188, 291630, 340235, 388840, 408282, 466608, 486050, 544376, 583260, 680470, 729075, 777680, 816564, 972100, 1020705, 1088752, 1166520, 1360940, 1458150, 1633128, 1701175, 1944200, 2041410, 2333040, 2721880, 2916300, 3266256, 3402350, 3888400, 4082820, 5103525, 5443760, 5832600, 6804700, 8165640, 10207050, 11665200, 13609400, 16331280, 20414100, 27218800, 40828200, 81656400]

約数ペア:

[(1, 81656400), (2, 40828200), (3, 27218800), (4, 20414100), (5, 16331280), (6, 13609400), (7, 11665200), (8, 10207050), (10, 8165640), (12, 6804700), (14, 5832600), (15, 5443760), (16, 5103525), (20, 4082820), (21, 3888400), (24, 3402350), (25, 3266256), (28, 2916300), (30, 2721880), (35, 2333040), (40, 2041410), (42, 1944200), (48, 1701175), (50, 1633128), (56, 1458150), (60, 1360940), (70, 1166520), (75, 1088752), (80, 1020705), (84, 972100), (100, 816564), (105, 777680), (112, 729075), (120, 680470), (140, 583260), (150, 544376), (168, 486050), (175, 466608), (200, 408282), (210, 388840), (240, 340235), (280, 291630), (300, 272188), (336, 243025), (350, 233304), (400, 204141), (420, 194420), (525, 155536), (560, 145815), (600, 136094), (700, 116652), (840, 97210), (1050, 77768), (1200, 68047), (1400, 58326), (1680, 48605), (2100, 38884), (2800, 29163), (4200, 19442), (8400, 9721)]