18943380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 62899200

約数和(自身を除く): 43955820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 29, 30, 36, 38, 45, 57, 58, 60, 76, 87, 90, 95, 114, 116, 145, 171, 174, 180, 190, 191, 228, 261, 285, 290, 342, 348, 380, 382, 435, 522, 551, 570, 573, 580, 684, 764, 855, 870, 955, 1044, 1102, 1140, 1146, 1305, 1653, 1710, 1719, 1740, 1910, 2204, 2292, 2610, 2755, 2865, 3306, 3420, 3438, 3629, 3820, 4959, 5220, 5510, 5539, 5730, 6612, 6876, 7258, 8265, 8595, 9918, 10887, 11020, 11078, 11460, 14516, 16530, 16617, 17190, 18145, 19836, 21774, 22156, 24795, 27695, 32661, 33060, 33234, 34380, 36290, 43548, 49590, 49851, 54435, 55390, 65322, 66468, 72580, 83085, 99180, 99702, 105241, 108870, 110780, 130644, 163305, 166170, 199404, 210482, 217740, 249255, 315723, 326610, 332340, 420964, 498510, 526205, 631446, 653220, 947169, 997020, 1052410, 1262892, 1578615, 1894338, 2104820, 3157230, 3788676, 4735845, 6314460, 9471690, 18943380]

約数ペア:

[(1, 18943380), (2, 9471690), (3, 6314460), (4, 4735845), (5, 3788676), (6, 3157230), (9, 2104820), (10, 1894338), (12, 1578615), (15, 1262892), (18, 1052410), (19, 997020), (20, 947169), (29, 653220), (30, 631446), (36, 526205), (38, 498510), (45, 420964), (57, 332340), (58, 326610), (60, 315723), (76, 249255), (87, 217740), (90, 210482), (95, 199404), (114, 166170), (116, 163305), (145, 130644), (171, 110780), (174, 108870), (180, 105241), (190, 99702), (191, 99180), (228, 83085), (261, 72580), (285, 66468), (290, 65322), (342, 55390), (348, 54435), (380, 49851), (382, 49590), (435, 43548), (522, 36290), (551, 34380), (570, 33234), (573, 33060), (580, 32661), (684, 27695), (764, 24795), (855, 22156), (870, 21774), (955, 19836), (1044, 18145), (1102, 17190), (1140, 16617), (1146, 16530), (1305, 14516), (1653, 11460), (1710, 11078), (1719, 11020), (1740, 10887), (1910, 9918), (2204, 8595), (2292, 8265), (2610, 7258), (2755, 6876), (2865, 6612), (3306, 5730), (3420, 5539), (3438, 5510), (3629, 5220), (3820, 4959)]