20154060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45890100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 71, 76, 83, 90, 95, 114, 142, 166, 171, 180, 190, 213, 228, 249, 284, 285, 332, 342, 355, 380, 415, 426, 498, 570, 639, 684, 710, 747, 830, 852, 855, 996, 1065, 1140, 1245, 1278, 1349, 1420, 1494, 1577, 1660, 1710, 2130, 2490, 2556, 2698, 2988, 3154, 3195, 3420, 3735, 4047, 4260, 4731, 4980, 5396, 5893, 6308, 6390, 6745, 7470, 7885, 8094, 9462, 11786, 12141, 12780, 13490, 14193, 14940, 15770, 16188, 17679, 18924, 20235, 23572, 23655, 24282, 26980, 28386, 29465, 31540, 35358, 40470, 47310, 48564, 53037, 56772, 58930, 60705, 70716, 70965, 80940, 88395, 94620, 106074, 111967, 117860, 121410, 141930, 176790, 212148, 223934, 242820, 265185, 283860, 335901, 353580, 447868, 530370, 559835, 671802, 1007703, 1060740, 1119670, 1343604, 1679505, 2015406, 2239340, 3359010, 4030812, 5038515, 6718020, 10077030, 20154060]

約数ペア:

[(1, 20154060), (2, 10077030), (3, 6718020), (4, 5038515), (5, 4030812), (6, 3359010), (9, 2239340), (10, 2015406), (12, 1679505), (15, 1343604), (18, 1119670), (19, 1060740), (20, 1007703), (30, 671802), (36, 559835), (38, 530370), (45, 447868), (57, 353580), (60, 335901), (71, 283860), (76, 265185), (83, 242820), (90, 223934), (95, 212148), (114, 176790), (142, 141930), (166, 121410), (171, 117860), (180, 111967), (190, 106074), (213, 94620), (228, 88395), (249, 80940), (284, 70965), (285, 70716), (332, 60705), (342, 58930), (355, 56772), (380, 53037), (415, 48564), (426, 47310), (498, 40470), (570, 35358), (639, 31540), (684, 29465), (710, 28386), (747, 26980), (830, 24282), (852, 23655), (855, 23572), (996, 20235), (1065, 18924), (1140, 17679), (1245, 16188), (1278, 15770), (1349, 14940), (1420, 14193), (1494, 13490), (1577, 12780), (1660, 12141), (1710, 11786), (2130, 9462), (2490, 8094), (2556, 7885), (2698, 7470), (2988, 6745), (3154, 6390), (3195, 6308), (3420, 5893), (3735, 5396), (4047, 4980), (4260, 4731)]