81031830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^2$

素因数の和:230

約数の個数: 96

約数和(自身を含む): 221488128

約数和(自身を除く): 140456298

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 55, 62, 66, 89, 93, 110, 155, 165, 178, 186, 267, 310, 330, 341, 445, 465, 534, 682, 890, 930, 979, 1023, 1335, 1705, 1958, 2046, 2670, 2759, 2937, 3410, 4895, 5115, 5518, 5874, 7921, 8277, 9790, 10230, 13795, 14685, 15842, 16554, 23763, 27590, 29370, 30349, 39605, 41385, 47526, 60698, 79210, 82770, 87131, 91047, 118815, 151745, 174262, 182094, 237630, 245551, 261393, 303490, 435655, 455235, 491102, 522786, 736653, 871310, 910470, 1227755, 1306965, 1473306, 2455510, 2613930, 2701061, 3683265, 5402122, 7366530, 8103183, 13505305, 16206366, 27010610, 40515915, 81031830]

約数ペア:

[(1, 81031830), (2, 40515915), (3, 27010610), (5, 16206366), (6, 13505305), (10, 8103183), (11, 7366530), (15, 5402122), (22, 3683265), (30, 2701061), (31, 2613930), (33, 2455510), (55, 1473306), (62, 1306965), (66, 1227755), (89, 910470), (93, 871310), (110, 736653), (155, 522786), (165, 491102), (178, 455235), (186, 435655), (267, 303490), (310, 261393), (330, 245551), (341, 237630), (445, 182094), (465, 174262), (534, 151745), (682, 118815), (890, 91047), (930, 87131), (979, 82770), (1023, 79210), (1335, 60698), (1705, 47526), (1958, 41385), (2046, 39605), (2670, 30349), (2759, 29370), (2937, 27590), (3410, 23763), (4895, 16554), (5115, 15842), (5518, 14685), (5874, 13795), (7921, 10230), (8277, 9790)]