20020727120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{613}}^1\times {\mathrm{21487}}^1$

素因数の和:22132

約数の個数: 80

約数和(自身を含む): 49080311040

約数和(自身を除く): 29059583920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 613, 760, 1226, 1520, 2452, 3065, 4904, 6130, 9808, 11647, 12260, 21487, 23294, 24520, 42974, 46588, 49040, 58235, 85948, 93176, 107435, 116470, 171896, 186352, 214870, 232940, 343792, 408253, 429740, 465880, 816506, 859480, 931760, 1633012, 1718960, 2041265, 3266024, 4082530, 6532048, 8165060, 13171531, 16330120, 26343062, 32660240, 52686124, 65857655, 105372248, 131715310, 210744496, 250259089, 263430620, 500518178, 526861240, 1001036356, 1053722480, 1251295445, 2002072712, 2502590890, 4004145424, 5005181780, 10010363560, 20020727120]

約数ペア:

[(1, 20020727120), (2, 10010363560), (4, 5005181780), (5, 4004145424), (8, 2502590890), (10, 2002072712), (16, 1251295445), (19, 1053722480), (20, 1001036356), (38, 526861240), (40, 500518178), (76, 263430620), (80, 250259089), (95, 210744496), (152, 131715310), (190, 105372248), (304, 65857655), (380, 52686124), (613, 32660240), (760, 26343062), (1226, 16330120), (1520, 13171531), (2452, 8165060), (3065, 6532048), (4904, 4082530), (6130, 3266024), (9808, 2041265), (11647, 1718960), (12260, 1633012), (21487, 931760), (23294, 859480), (24520, 816506), (42974, 465880), (46588, 429740), (49040, 408253), (58235, 343792), (85948, 232940), (93176, 214870), (107435, 186352), (116470, 171896)]