28638384180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{9740947}}^1$

素因数の和:9740973

約数の個数: 72

約数和(自身を含む): 93279318048

約数和(自身を除く): 64640933868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 9740947, 19481894, 29222841, 38963788, 48704735, 58445682, 68186629, 97409470, 116891364, 136373258, 146114205, 194818940, 204559887, 272746516, 292228410, 340933145, 409119774, 477306403, 584456820, 681866290, 818239548, 954612806, 1022799435, 1363732580, 1431919209, 1909225612, 2045598870, 2386532015, 2863838418, 4091197740, 4773064030, 5727676836, 7159596045, 9546128060, 14319192090, 28638384180]

約数ペア:

[(1, 28638384180), (2, 14319192090), (3, 9546128060), (4, 7159596045), (5, 5727676836), (6, 4773064030), (7, 4091197740), (10, 2863838418), (12, 2386532015), (14, 2045598870), (15, 1909225612), (20, 1431919209), (21, 1363732580), (28, 1022799435), (30, 954612806), (35, 818239548), (42, 681866290), (49, 584456820), (60, 477306403), (70, 409119774), (84, 340933145), (98, 292228410), (105, 272746516), (140, 204559887), (147, 194818940), (196, 146114205), (210, 136373258), (245, 116891364), (294, 97409470), (420, 68186629), (490, 58445682), (588, 48704735), (735, 38963788), (980, 29222841), (1470, 19481894), (2940, 9740947)]