18897780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 61669440

約数和(自身を除く): 42771660

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 33, 38, 44, 55, 57, 60, 66, 76, 95, 110, 114, 121, 132, 137, 165, 190, 209, 220, 228, 242, 274, 285, 330, 363, 380, 411, 418, 484, 548, 570, 605, 627, 660, 685, 726, 822, 836, 1045, 1140, 1210, 1254, 1370, 1452, 1507, 1644, 1815, 2055, 2090, 2299, 2420, 2508, 2603, 2740, 3014, 3135, 3630, 4110, 4180, 4521, 4598, 5206, 6028, 6270, 6897, 7260, 7535, 7809, 8220, 9042, 9196, 10412, 11495, 12540, 13015, 13794, 15070, 15618, 16577, 18084, 22605, 22990, 26030, 27588, 28633, 30140, 31236, 33154, 34485, 39045, 45210, 45980, 49731, 52060, 57266, 66308, 68970, 78090, 82885, 85899, 90420, 99462, 114532, 137940, 143165, 156180, 165770, 171798, 198924, 248655, 286330, 314963, 331540, 343596, 429495, 497310, 572660, 629926, 858990, 944889, 994620, 1259852, 1574815, 1717980, 1889778, 3149630, 3779556, 4724445, 6299260, 9448890, 18897780]

約数ペア:

[(1, 18897780), (2, 9448890), (3, 6299260), (4, 4724445), (5, 3779556), (6, 3149630), (10, 1889778), (11, 1717980), (12, 1574815), (15, 1259852), (19, 994620), (20, 944889), (22, 858990), (30, 629926), (33, 572660), (38, 497310), (44, 429495), (55, 343596), (57, 331540), (60, 314963), (66, 286330), (76, 248655), (95, 198924), (110, 171798), (114, 165770), (121, 156180), (132, 143165), (137, 137940), (165, 114532), (190, 99462), (209, 90420), (220, 85899), (228, 82885), (242, 78090), (274, 68970), (285, 66308), (330, 57266), (363, 52060), (380, 49731), (411, 45980), (418, 45210), (484, 39045), (548, 34485), (570, 33154), (605, 31236), (627, 30140), (660, 28633), (685, 27588), (726, 26030), (822, 22990), (836, 22605), (1045, 18084), (1140, 16577), (1210, 15618), (1254, 15070), (1370, 13794), (1452, 13015), (1507, 12540), (1644, 11495), (1815, 10412), (2055, 9196), (2090, 9042), (2299, 8220), (2420, 7809), (2508, 7535), (2603, 7260), (2740, 6897), (3014, 6270), (3135, 6028), (3630, 5206), (4110, 4598), (4180, 4521)]