20938571824

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{569}}^1$

素因数の和:915

約数の個数: 120

約数和(自身を含む): 44917705440

約数和(自身を除く): 23979133616

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 277, 304, 361, 368, 437, 554, 569, 722, 874, 1108, 1138, 1444, 1748, 2216, 2276, 2888, 3496, 4432, 4552, 5263, 5776, 6371, 6992, 8303, 9104, 10526, 10811, 12742, 13087, 16606, 21052, 21622, 25484, 26174, 33212, 42104, 43244, 50968, 52348, 66424, 84208, 86488, 99997, 101936, 104696, 121049, 132848, 157613, 172976, 199994, 205409, 209392, 242098, 248653, 315226, 399988, 410818, 484196, 497306, 630452, 799976, 821636, 968392, 994612, 1260904, 1599952, 1643272, 1936784, 1989224, 2299931, 2521808, 2994647, 3286544, 3625099, 3978448, 4599862, 4724407, 5989294, 7250198, 9199724, 9448814, 11978588, 14500396, 18399448, 18897628, 23957176, 29000792, 36798896, 37795256, 47914352, 56898293, 58001584, 68876881, 75590512, 113796586, 137753762, 227593172, 275507524, 455186344, 551015048, 910372688, 1102030096, 1308660739, 2617321478, 5234642956, 10469285912, 20938571824]

約数ペア:

[(1, 20938571824), (2, 10469285912), (4, 5234642956), (8, 2617321478), (16, 1308660739), (19, 1102030096), (23, 910372688), (38, 551015048), (46, 455186344), (76, 275507524), (92, 227593172), (152, 137753762), (184, 113796586), (277, 75590512), (304, 68876881), (361, 58001584), (368, 56898293), (437, 47914352), (554, 37795256), (569, 36798896), (722, 29000792), (874, 23957176), (1108, 18897628), (1138, 18399448), (1444, 14500396), (1748, 11978588), (2216, 9448814), (2276, 9199724), (2888, 7250198), (3496, 5989294), (4432, 4724407), (4552, 4599862), (5263, 3978448), (5776, 3625099), (6371, 3286544), (6992, 2994647), (8303, 2521808), (9104, 2299931), (10526, 1989224), (10811, 1936784), (12742, 1643272), (13087, 1599952), (16606, 1260904), (21052, 994612), (21622, 968392), (25484, 821636), (26174, 799976), (33212, 630452), (42104, 497306), (43244, 484196), (50968, 410818), (52348, 399988), (66424, 315226), (84208, 248653), (86488, 242098), (99997, 209392), (101936, 205409), (104696, 199994), (121049, 172976), (132848, 157613)]