405473420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{1223}}^1$

素因数の和:1391

約数の個数: 72

約数和(自身を含む): 943542432

約数和(自身を除く): 538069012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 137, 220, 242, 274, 484, 548, 605, 685, 1210, 1223, 1370, 1507, 2420, 2446, 2740, 3014, 4892, 6028, 6115, 7535, 12230, 13453, 15070, 16577, 24460, 26906, 30140, 33154, 53812, 66308, 67265, 82885, 134530, 147983, 165770, 167551, 269060, 295966, 331540, 335102, 591932, 670204, 739915, 837755, 1479830, 1675510, 1843061, 2959660, 3351020, 3686122, 7372244, 9215305, 18430610, 20273671, 36861220, 40547342, 81094684, 101368355, 202736710, 405473420]

約数ペア:

[(1, 405473420), (2, 202736710), (4, 101368355), (5, 81094684), (10, 40547342), (11, 36861220), (20, 20273671), (22, 18430610), (44, 9215305), (55, 7372244), (110, 3686122), (121, 3351020), (137, 2959660), (220, 1843061), (242, 1675510), (274, 1479830), (484, 837755), (548, 739915), (605, 670204), (685, 591932), (1210, 335102), (1223, 331540), (1370, 295966), (1507, 269060), (2420, 167551), (2446, 165770), (2740, 147983), (3014, 134530), (4892, 82885), (6028, 67265), (6115, 66308), (7535, 53812), (12230, 33154), (13453, 30140), (15070, 26906), (16577, 24460)]