18628740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:466

約数の個数: 144

約数和(自身を含む): 64209600

約数和(自身を除く): 45580860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 419, 468, 494, 570, 585, 684, 741, 780, 838, 855, 988, 1140, 1170, 1235, 1257, 1482, 1676, 1710, 2095, 2223, 2340, 2470, 2514, 2964, 3420, 3705, 3771, 4190, 4446, 4940, 5028, 5447, 6285, 7410, 7542, 7961, 8380, 8892, 10894, 11115, 12570, 14820, 15084, 15922, 16341, 18855, 21788, 22230, 23883, 25140, 27235, 31844, 32682, 37710, 39805, 44460, 47766, 49023, 54470, 65364, 71649, 75420, 79610, 81705, 95532, 98046, 103493, 108940, 119415, 143298, 159220, 163410, 196092, 206986, 238830, 245115, 286596, 310479, 326820, 358245, 413972, 477660, 490230, 517465, 620958, 716490, 931437, 980460, 1034930, 1241916, 1432980, 1552395, 1862874, 2069860, 3104790, 3725748, 4657185, 6209580, 9314370, 18628740]

約数ペア:

[(1, 18628740), (2, 9314370), (3, 6209580), (4, 4657185), (5, 3725748), (6, 3104790), (9, 2069860), (10, 1862874), (12, 1552395), (13, 1432980), (15, 1241916), (18, 1034930), (19, 980460), (20, 931437), (26, 716490), (30, 620958), (36, 517465), (38, 490230), (39, 477660), (45, 413972), (52, 358245), (57, 326820), (60, 310479), (65, 286596), (76, 245115), (78, 238830), (90, 206986), (95, 196092), (114, 163410), (117, 159220), (130, 143298), (156, 119415), (171, 108940), (180, 103493), (190, 98046), (195, 95532), (228, 81705), (234, 79610), (247, 75420), (260, 71649), (285, 65364), (342, 54470), (380, 49023), (390, 47766), (419, 44460), (468, 39805), (494, 37710), (570, 32682), (585, 31844), (684, 27235), (741, 25140), (780, 23883), (838, 22230), (855, 21788), (988, 18855), (1140, 16341), (1170, 15922), (1235, 15084), (1257, 14820), (1482, 12570), (1676, 11115), (1710, 10894), (2095, 8892), (2223, 8380), (2340, 7961), (2470, 7542), (2514, 7410), (2964, 6285), (3420, 5447), (3705, 5028), (3771, 4940), (4190, 4446)]