20123952980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{683}}^1\times {\mathrm{4561}}^1$

素因数の和:5289

約数の個数: 96

約数和(自身を含む): 47180568960

約数和(自身を除く): 27056615980

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 683, 1292, 1366, 1615, 2732, 3230, 3415, 4561, 6460, 6830, 9122, 11611, 12977, 13660, 18244, 22805, 23222, 25954, 45610, 46444, 51908, 58055, 64885, 77537, 86659, 91220, 116110, 129770, 155074, 173318, 220609, 232220, 259540, 310148, 346636, 387685, 433295, 441218, 775370, 866590, 882436, 1103045, 1473203, 1550740, 1733180, 2206090, 2946406, 3115163, 4412180, 5892812, 6230326, 7366015, 12460652, 14732030, 15575815, 29464060, 31151630, 52957771, 59188097, 62303260, 105915542, 118376194, 211831084, 236752388, 264788855, 295940485, 529577710, 591880970, 1006197649, 1059155420, 1183761940, 2012395298, 4024790596, 5030988245, 10061976490, 20123952980]

約数ペア:

[(1, 20123952980), (2, 10061976490), (4, 5030988245), (5, 4024790596), (10, 2012395298), (17, 1183761940), (19, 1059155420), (20, 1006197649), (34, 591880970), (38, 529577710), (68, 295940485), (76, 264788855), (85, 236752388), (95, 211831084), (170, 118376194), (190, 105915542), (323, 62303260), (340, 59188097), (380, 52957771), (646, 31151630), (683, 29464060), (1292, 15575815), (1366, 14732030), (1615, 12460652), (2732, 7366015), (3230, 6230326), (3415, 5892812), (4561, 4412180), (6460, 3115163), (6830, 2946406), (9122, 2206090), (11611, 1733180), (12977, 1550740), (13660, 1473203), (18244, 1103045), (22805, 882436), (23222, 866590), (25954, 775370), (45610, 441218), (46444, 433295), (51908, 387685), (58055, 346636), (64885, 310148), (77537, 259540), (86659, 232220), (91220, 220609), (116110, 173318), (129770, 155074)]