28806540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{641}}^1$

素因数の和:767

約数の個数: 96

約数和(自身を含む): 93187584

約数和(自身を除く): 64381044

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 107, 140, 210, 214, 321, 420, 428, 535, 641, 642, 749, 1070, 1282, 1284, 1498, 1605, 1923, 2140, 2247, 2564, 2996, 3205, 3210, 3745, 3846, 4487, 4494, 6410, 6420, 7490, 7692, 8974, 8988, 9615, 11235, 12820, 13461, 14980, 17948, 19230, 22435, 22470, 26922, 38460, 44870, 44940, 53844, 67305, 68587, 89740, 134610, 137174, 205761, 269220, 274348, 342935, 411522, 480109, 685870, 823044, 960218, 1028805, 1371740, 1440327, 1920436, 2057610, 2400545, 2880654, 4115220, 4801090, 5761308, 7201635, 9602180, 14403270, 28806540]

約数ペア:

[(1, 28806540), (2, 14403270), (3, 9602180), (4, 7201635), (5, 5761308), (6, 4801090), (7, 4115220), (10, 2880654), (12, 2400545), (14, 2057610), (15, 1920436), (20, 1440327), (21, 1371740), (28, 1028805), (30, 960218), (35, 823044), (42, 685870), (60, 480109), (70, 411522), (84, 342935), (105, 274348), (107, 269220), (140, 205761), (210, 137174), (214, 134610), (321, 89740), (420, 68587), (428, 67305), (535, 53844), (641, 44940), (642, 44870), (749, 38460), (1070, 26922), (1282, 22470), (1284, 22435), (1498, 19230), (1605, 17948), (1923, 14980), (2140, 13461), (2247, 12820), (2564, 11235), (2996, 9615), (3205, 8988), (3210, 8974), (3745, 7692), (3846, 7490), (4487, 6420), (4494, 6410)]