19962601360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1\times {\mathrm{751}}^1$

素因数の和:1257

約数の個数: 160

約数和(自身を含む): 50991736320

約数和(自身を除く): 31029134960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 419, 488, 520, 610, 751, 793, 838, 976, 1040, 1220, 1502, 1586, 1676, 2095, 2440, 3004, 3172, 3352, 3755, 3965, 4190, 4880, 5447, 6008, 6344, 6704, 7510, 7930, 8380, 9763, 10894, 12016, 12688, 15020, 15860, 16760, 19526, 21788, 25559, 27235, 30040, 31720, 33520, 39052, 43576, 45811, 48815, 51118, 54470, 60080, 63440, 78104, 87152, 91622, 97630, 102236, 108940, 127795, 156208, 183244, 195260, 204472, 217880, 229055, 255590, 314669, 332267, 366488, 390520, 408944, 435760, 458110, 511180, 595543, 629338, 664534, 732976, 781040, 916220, 1022360, 1191086, 1258676, 1329068, 1573345, 1661335, 1832440, 2044720, 2382172, 2517352, 2658136, 2977715, 3146690, 3322670, 3664880, 4090697, 4764344, 5034704, 5316272, 5955430, 6293380, 6645340, 8181394, 9528688, 11910860, 12586760, 13290680, 16362788, 19194809, 20453485, 23821720, 25173520, 26581360, 32725576, 38389618, 40906970, 47643440, 65451152, 76779236, 81813940, 95974045, 153558472, 163627880, 191948090, 249532517, 307116944, 327255760, 383896180, 499065034, 767792360, 998130068, 1247662585, 1535584720, 1996260136, 2495325170, 3992520272, 4990650340, 9981300680, 19962601360]

約数ペア:

[(1, 19962601360), (2, 9981300680), (4, 4990650340), (5, 3992520272), (8, 2495325170), (10, 1996260136), (13, 1535584720), (16, 1247662585), (20, 998130068), (26, 767792360), (40, 499065034), (52, 383896180), (61, 327255760), (65, 307116944), (80, 249532517), (104, 191948090), (122, 163627880), (130, 153558472), (208, 95974045), (244, 81813940), (260, 76779236), (305, 65451152), (419, 47643440), (488, 40906970), (520, 38389618), (610, 32725576), (751, 26581360), (793, 25173520), (838, 23821720), (976, 20453485), (1040, 19194809), (1220, 16362788), (1502, 13290680), (1586, 12586760), (1676, 11910860), (2095, 9528688), (2440, 8181394), (3004, 6645340), (3172, 6293380), (3352, 5955430), (3755, 5316272), (3965, 5034704), (4190, 4764344), (4880, 4090697), (5447, 3664880), (6008, 3322670), (6344, 3146690), (6704, 2977715), (7510, 2658136), (7930, 2517352), (8380, 2382172), (9763, 2044720), (10894, 1832440), (12016, 1661335), (12688, 1573345), (15020, 1329068), (15860, 1258676), (16760, 1191086), (19526, 1022360), (21788, 916220), (25559, 781040), (27235, 732976), (30040, 664534), (31720, 629338), (33520, 595543), (39052, 511180), (43576, 458110), (45811, 435760), (48815, 408944), (51118, 390520), (54470, 366488), (60080, 332267), (63440, 314669), (78104, 255590), (87152, 229055), (91622, 217880), (97630, 204472), (102236, 195260), (108940, 183244), (127795, 156208)]