18801156760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:657

約数の個数: 128

約数和(自身を含む): 43615918080

約数和(自身を除く): 24814761320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 163, 193, 223, 268, 326, 335, 386, 446, 536, 652, 670, 772, 815, 892, 965, 1115, 1304, 1340, 1544, 1630, 1784, 1930, 2230, 2680, 3260, 3860, 4460, 6520, 7720, 8920, 10921, 12931, 14941, 21842, 25862, 29882, 31459, 36349, 43039, 43684, 51724, 54605, 59764, 62918, 64655, 72698, 74705, 86078, 87368, 103448, 109210, 119528, 125836, 129310, 145396, 149410, 157295, 172156, 181745, 215195, 218420, 251672, 258620, 290792, 298820, 314590, 344312, 363490, 430390, 436840, 517240, 597640, 629180, 726980, 860780, 1258360, 1453960, 1721560, 2107753, 2435383, 2883613, 4215506, 4870766, 5767226, 7015357, 8431012, 9741532, 10538765, 11534452, 12176915, 14030714, 14418065, 16862024, 19483064, 21077530, 23068904, 24353830, 28061428, 28836130, 35076785, 42155060, 48707660, 56122856, 57672260, 70153570, 84310120, 97415320, 115344520, 140307140, 280614280, 470028919, 940057838, 1880115676, 2350144595, 3760231352, 4700289190, 9400578380, 18801156760]

約数ペア:

[(1, 18801156760), (2, 9400578380), (4, 4700289190), (5, 3760231352), (8, 2350144595), (10, 1880115676), (20, 940057838), (40, 470028919), (67, 280614280), (134, 140307140), (163, 115344520), (193, 97415320), (223, 84310120), (268, 70153570), (326, 57672260), (335, 56122856), (386, 48707660), (446, 42155060), (536, 35076785), (652, 28836130), (670, 28061428), (772, 24353830), (815, 23068904), (892, 21077530), (965, 19483064), (1115, 16862024), (1304, 14418065), (1340, 14030714), (1544, 12176915), (1630, 11534452), (1784, 10538765), (1930, 9741532), (2230, 8431012), (2680, 7015357), (3260, 5767226), (3860, 4870766), (4460, 4215506), (6520, 2883613), (7720, 2435383), (8920, 2107753), (10921, 1721560), (12931, 1453960), (14941, 1258360), (21842, 860780), (25862, 726980), (29882, 629180), (31459, 597640), (36349, 517240), (43039, 436840), (43684, 430390), (51724, 363490), (54605, 344312), (59764, 314590), (62918, 298820), (64655, 290792), (72698, 258620), (74705, 251672), (86078, 218420), (87368, 215195), (103448, 181745), (109210, 172156), (119528, 157295), (125836, 149410), (129310, 145396)]