51008020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:150

約数の個数: 144

約数和(自身を含む): 136055808

約数和(自身を除く): 85047788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 49, 62, 70, 73, 92, 98, 115, 124, 140, 146, 155, 161, 196, 217, 230, 245, 292, 310, 322, 365, 434, 460, 490, 511, 620, 644, 713, 730, 805, 868, 980, 1022, 1085, 1127, 1426, 1460, 1519, 1610, 1679, 2044, 2170, 2254, 2263, 2555, 2852, 3038, 3220, 3358, 3565, 3577, 4340, 4508, 4526, 4991, 5110, 5635, 6076, 6716, 7130, 7154, 7595, 8395, 9052, 9982, 10220, 11270, 11315, 11753, 14260, 14308, 15190, 15841, 16790, 17885, 19964, 22540, 22630, 23506, 24955, 30380, 31682, 33580, 34937, 35770, 45260, 47012, 49910, 52049, 58765, 63364, 69874, 71540, 79205, 82271, 99820, 104098, 110887, 117530, 139748, 158410, 164542, 174685, 208196, 221774, 235060, 260245, 316820, 329084, 349370, 364343, 411355, 443548, 520490, 554435, 698740, 728686, 822710, 1040980, 1108870, 1457372, 1645420, 1821715, 2217740, 2550401, 3643430, 5100802, 7286860, 10201604, 12752005, 25504010, 51008020]

約数ペア:

[(1, 51008020), (2, 25504010), (4, 12752005), (5, 10201604), (7, 7286860), (10, 5100802), (14, 3643430), (20, 2550401), (23, 2217740), (28, 1821715), (31, 1645420), (35, 1457372), (46, 1108870), (49, 1040980), (62, 822710), (70, 728686), (73, 698740), (92, 554435), (98, 520490), (115, 443548), (124, 411355), (140, 364343), (146, 349370), (155, 329084), (161, 316820), (196, 260245), (217, 235060), (230, 221774), (245, 208196), (292, 174685), (310, 164542), (322, 158410), (365, 139748), (434, 117530), (460, 110887), (490, 104098), (511, 99820), (620, 82271), (644, 79205), (713, 71540), (730, 69874), (805, 63364), (868, 58765), (980, 52049), (1022, 49910), (1085, 47012), (1127, 45260), (1426, 35770), (1460, 34937), (1519, 33580), (1610, 31682), (1679, 30380), (2044, 24955), (2170, 23506), (2254, 22630), (2263, 22540), (2555, 19964), (2852, 17885), (3038, 16790), (3220, 15841), (3358, 15190), (3565, 14308), (3577, 14260), (4340, 11753), (4508, 11315), (4526, 11270), (4991, 10220), (5110, 9982), (5635, 9052), (6076, 8395), (6716, 7595), (7130, 7154)]