20390398490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{983}}^1$

素因数の和:1129

約数の個数: 192

約数和(自身を含む): 48244654080

約数和(自身を除く): 27854255590

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 31, 35, 55, 62, 70, 77, 79, 110, 121, 154, 155, 158, 217, 242, 310, 341, 385, 395, 434, 553, 605, 682, 770, 790, 847, 869, 983, 1085, 1106, 1210, 1694, 1705, 1738, 1966, 2170, 2387, 2449, 2765, 3410, 3751, 4235, 4345, 4774, 4898, 4915, 5530, 6083, 6881, 7502, 8470, 8690, 9559, 9830, 10813, 11935, 12166, 12245, 13762, 17143, 18755, 19118, 21626, 23870, 24490, 26257, 26939, 30415, 30473, 34286, 34405, 37510, 47795, 52514, 53878, 54065, 60830, 60946, 66913, 68810, 75691, 77657, 85715, 95590, 108130, 118943, 131285, 133826, 134695, 151382, 152365, 155314, 171430, 188573, 213311, 237886, 262570, 269390, 296329, 304730, 334565, 335203, 377146, 378455, 388285, 426622, 543599, 592658, 594715, 669130, 670406, 756910, 776570, 832601, 854227, 942865, 1066555, 1087198, 1189430, 1481645, 1665202, 1676015, 1708454, 1885730, 2074303, 2133110, 2346421, 2407367, 2717995, 2963290, 3352030, 3687233, 4148606, 4163005, 4271135, 4692842, 4814734, 5435990, 5979589, 7374466, 8326010, 8542270, 9396497, 10371515, 11732105, 11959178, 12036835, 16851569, 18436165, 18792994, 20743030, 23464210, 24073670, 25810631, 26481037, 29897945, 33703138, 36872330, 46982485, 51621262, 52962074, 59795890, 65775479, 84257845, 93964970, 129053155, 131550958, 132405185, 168515690, 185367259, 258106310, 264810370, 291291407, 328877395, 370734518, 582582814, 657754790, 926836295, 1456457035, 1853672590, 2039039849, 2912914070, 4078079698, 10195199245, 20390398490]

約数ペア:

[(1, 20390398490), (2, 10195199245), (5, 4078079698), (7, 2912914070), (10, 2039039849), (11, 1853672590), (14, 1456457035), (22, 926836295), (31, 657754790), (35, 582582814), (55, 370734518), (62, 328877395), (70, 291291407), (77, 264810370), (79, 258106310), (110, 185367259), (121, 168515690), (154, 132405185), (155, 131550958), (158, 129053155), (217, 93964970), (242, 84257845), (310, 65775479), (341, 59795890), (385, 52962074), (395, 51621262), (434, 46982485), (553, 36872330), (605, 33703138), (682, 29897945), (770, 26481037), (790, 25810631), (847, 24073670), (869, 23464210), (983, 20743030), (1085, 18792994), (1106, 18436165), (1210, 16851569), (1694, 12036835), (1705, 11959178), (1738, 11732105), (1966, 10371515), (2170, 9396497), (2387, 8542270), (2449, 8326010), (2765, 7374466), (3410, 5979589), (3751, 5435990), (4235, 4814734), (4345, 4692842), (4774, 4271135), (4898, 4163005), (4915, 4148606), (5530, 3687233), (6083, 3352030), (6881, 2963290), (7502, 2717995), (8470, 2407367), (8690, 2346421), (9559, 2133110), (9830, 2074303), (10813, 1885730), (11935, 1708454), (12166, 1676015), (12245, 1665202), (13762, 1481645), (17143, 1189430), (18755, 1087198), (19118, 1066555), (21626, 942865), (23870, 854227), (24490, 832601), (26257, 776570), (26939, 756910), (30415, 670406), (30473, 669130), (34286, 594715), (34405, 592658), (37510, 543599), (47795, 426622), (52514, 388285), (53878, 378455), (54065, 377146), (60830, 335203), (60946, 334565), (66913, 304730), (68810, 296329), (75691, 269390), (77657, 262570), (85715, 237886), (95590, 213311), (108130, 188573), (118943, 171430), (131285, 155314), (133826, 152365), (134695, 151382)]