858455720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:583

約数の個数: 128

約数和(自身を含む): 2128896000

約数和(自身を除く): 1270440280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 83, 95, 124, 152, 155, 166, 190, 248, 310, 332, 380, 415, 439, 589, 620, 664, 760, 830, 878, 1178, 1240, 1577, 1660, 1756, 2195, 2356, 2573, 2945, 3154, 3320, 3512, 4390, 4712, 5146, 5890, 6308, 7885, 8341, 8780, 10292, 11780, 12616, 12865, 13609, 15770, 16682, 17560, 20584, 23560, 25730, 27218, 31540, 33364, 36437, 41705, 48887, 51460, 54436, 63080, 66728, 68045, 72874, 83410, 97774, 102920, 108872, 136090, 145748, 166820, 182185, 195548, 244435, 258571, 272180, 291496, 333640, 364370, 391096, 488870, 517142, 544360, 692303, 728740, 977740, 1034284, 1129547, 1292855, 1384606, 1457480, 1955480, 2068568, 2259094, 2585710, 2769212, 3461515, 4518188, 5171420, 5538424, 5647735, 6923030, 9036376, 10342840, 11295470, 13846060, 21461393, 22590940, 27692120, 42922786, 45181880, 85845572, 107306965, 171691144, 214613930, 429227860, 858455720]

約数ペア:

[(1, 858455720), (2, 429227860), (4, 214613930), (5, 171691144), (8, 107306965), (10, 85845572), (19, 45181880), (20, 42922786), (31, 27692120), (38, 22590940), (40, 21461393), (62, 13846060), (76, 11295470), (83, 10342840), (95, 9036376), (124, 6923030), (152, 5647735), (155, 5538424), (166, 5171420), (190, 4518188), (248, 3461515), (310, 2769212), (332, 2585710), (380, 2259094), (415, 2068568), (439, 1955480), (589, 1457480), (620, 1384606), (664, 1292855), (760, 1129547), (830, 1034284), (878, 977740), (1178, 728740), (1240, 692303), (1577, 544360), (1660, 517142), (1756, 488870), (2195, 391096), (2356, 364370), (2573, 333640), (2945, 291496), (3154, 272180), (3320, 258571), (3512, 244435), (4390, 195548), (4712, 182185), (5146, 166820), (5890, 145748), (6308, 136090), (7885, 108872), (8341, 102920), (8780, 97774), (10292, 83410), (11780, 72874), (12616, 68045), (12865, 66728), (13609, 63080), (15770, 54436), (16682, 51460), (17560, 48887), (20584, 41705), (23560, 36437), (25730, 33364), (27218, 31540)]