19986483040

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139883}}^1$

素因数の和:139964

約数の個数: 96

約数和(自身を含む): 50761105920

約数和(自身を除く): 30774622880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 47, 76, 80, 94, 95, 152, 160, 188, 190, 235, 304, 376, 380, 470, 608, 752, 760, 893, 940, 1504, 1520, 1786, 1880, 3040, 3572, 3760, 4465, 7144, 7520, 8930, 14288, 17860, 28576, 35720, 71440, 139883, 142880, 279766, 559532, 699415, 1119064, 1398830, 2238128, 2657777, 2797660, 4476256, 5315554, 5595320, 6574501, 10631108, 11190640, 13149002, 13288885, 21262216, 22381280, 26298004, 26577770, 32872505, 42524432, 52596008, 53155540, 65745010, 85048864, 105192016, 106311080, 124915519, 131490020, 210384032, 212622160, 249831038, 262980040, 425244320, 499662076, 525960080, 624577595, 999324152, 1051920160, 1249155190, 1998648304, 2498310380, 3997296608, 4996620760, 9993241520, 19986483040]

約数ペア:

[(1, 19986483040), (2, 9993241520), (4, 4996620760), (5, 3997296608), (8, 2498310380), (10, 1998648304), (16, 1249155190), (19, 1051920160), (20, 999324152), (32, 624577595), (38, 525960080), (40, 499662076), (47, 425244320), (76, 262980040), (80, 249831038), (94, 212622160), (95, 210384032), (152, 131490020), (160, 124915519), (188, 106311080), (190, 105192016), (235, 85048864), (304, 65745010), (376, 53155540), (380, 52596008), (470, 42524432), (608, 32872505), (752, 26577770), (760, 26298004), (893, 22381280), (940, 21262216), (1504, 13288885), (1520, 13149002), (1786, 11190640), (1880, 10631108), (3040, 6574501), (3572, 5595320), (3760, 5315554), (4465, 4476256), (7144, 2797660), (7520, 2657777), (8930, 2238128), (14288, 1398830), (17860, 1119064), (28576, 699415), (35720, 559532), (71440, 279766), (139883, 142880)]