208944540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{165829}}^1$

素因数の和:165851

約数の個数: 72

約数和(自身を含む): 724345440

約数和(自身を除く): 515400900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 165829, 331658, 497487, 663316, 829145, 994974, 1160803, 1492461, 1658290, 1989948, 2321606, 2487435, 2984922, 3316580, 3482409, 4643212, 4974870, 5804015, 5969844, 6964818, 7462305, 9949740, 10447227, 11608030, 13929636, 14924610, 17412045, 20894454, 23216060, 29849220, 34824090, 41788908, 52236135, 69648180, 104472270, 208944540]

約数ペア:

[(1, 208944540), (2, 104472270), (3, 69648180), (4, 52236135), (5, 41788908), (6, 34824090), (7, 29849220), (9, 23216060), (10, 20894454), (12, 17412045), (14, 14924610), (15, 13929636), (18, 11608030), (20, 10447227), (21, 9949740), (28, 7462305), (30, 6964818), (35, 5969844), (36, 5804015), (42, 4974870), (45, 4643212), (60, 3482409), (63, 3316580), (70, 2984922), (84, 2487435), (90, 2321606), (105, 1989948), (126, 1658290), (140, 1492461), (180, 1160803), (210, 994974), (252, 829145), (315, 663316), (420, 497487), (630, 331658), (1260, 165829)]