18358340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:178

約数の個数: 144

約数和(自身を含む): 53089344

約数和(自身を除く): 34731004

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 55, 65, 70, 77, 91, 98, 110, 130, 131, 140, 143, 154, 182, 196, 220, 245, 260, 262, 286, 308, 364, 385, 455, 490, 524, 539, 572, 637, 655, 715, 770, 910, 917, 980, 1001, 1078, 1274, 1310, 1430, 1441, 1540, 1703, 1820, 1834, 2002, 2156, 2548, 2620, 2695, 2860, 2882, 3185, 3406, 3668, 4004, 4585, 5005, 5390, 5764, 6370, 6419, 6812, 7007, 7205, 8515, 9170, 10010, 10087, 10780, 11921, 12740, 12838, 14014, 14410, 17030, 18340, 18733, 20020, 20174, 23842, 25676, 28028, 28820, 32095, 34060, 35035, 37466, 40348, 47684, 50435, 59605, 64190, 70070, 70609, 74932, 83447, 93665, 100870, 119210, 128380, 131131, 140140, 141218, 166894, 187330, 201740, 238420, 262262, 282436, 333788, 353045, 374660, 417235, 524524, 655655, 706090, 834470, 917917, 1311310, 1412180, 1668940, 1835834, 2622620, 3671668, 4589585, 9179170, 18358340]

約数ペア:

[(1, 18358340), (2, 9179170), (4, 4589585), (5, 3671668), (7, 2622620), (10, 1835834), (11, 1668940), (13, 1412180), (14, 1311310), (20, 917917), (22, 834470), (26, 706090), (28, 655655), (35, 524524), (44, 417235), (49, 374660), (52, 353045), (55, 333788), (65, 282436), (70, 262262), (77, 238420), (91, 201740), (98, 187330), (110, 166894), (130, 141218), (131, 140140), (140, 131131), (143, 128380), (154, 119210), (182, 100870), (196, 93665), (220, 83447), (245, 74932), (260, 70609), (262, 70070), (286, 64190), (308, 59605), (364, 50435), (385, 47684), (455, 40348), (490, 37466), (524, 35035), (539, 34060), (572, 32095), (637, 28820), (655, 28028), (715, 25676), (770, 23842), (910, 20174), (917, 20020), (980, 18733), (1001, 18340), (1078, 17030), (1274, 14410), (1310, 14014), (1430, 12838), (1441, 12740), (1540, 11921), (1703, 10780), (1820, 10087), (1834, 10010), (2002, 9170), (2156, 8515), (2548, 7205), (2620, 7007), (2695, 6812), (2860, 6419), (2882, 6370), (3185, 5764), (3406, 5390), (3668, 5005), (4004, 4585)]