20411820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 216

約数和(自身を含む): 74338992

約数和(自身を除く): 53927172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 61, 65, 66, 78, 90, 99, 110, 117, 122, 130, 132, 143, 156, 165, 169, 180, 183, 195, 198, 220, 234, 244, 260, 286, 305, 330, 338, 366, 390, 396, 429, 468, 495, 507, 549, 572, 585, 610, 660, 671, 676, 715, 732, 780, 793, 845, 858, 915, 990, 1014, 1098, 1170, 1220, 1287, 1342, 1430, 1521, 1586, 1690, 1716, 1830, 1859, 1980, 2013, 2028, 2145, 2196, 2340, 2379, 2535, 2574, 2684, 2745, 2860, 3042, 3172, 3355, 3380, 3660, 3718, 3965, 4026, 4290, 4758, 5070, 5148, 5490, 5577, 6039, 6084, 6435, 6710, 7137, 7436, 7605, 7930, 8052, 8580, 8723, 9295, 9516, 10065, 10140, 10309, 10980, 11154, 11895, 12078, 12870, 13420, 14274, 15210, 15860, 16731, 17446, 18590, 20130, 20618, 22308, 23790, 24156, 25740, 26169, 27885, 28548, 30195, 30420, 30927, 33462, 34892, 35685, 37180, 40260, 41236, 43615, 47580, 51545, 52338, 55770, 60390, 61854, 66924, 71370, 78507, 83655, 87230, 92781, 103090, 104676, 111540, 113399, 120780, 123708, 130845, 142740, 154635, 157014, 167310, 174460, 185562, 206180, 226798, 261690, 309270, 314028, 334620, 340197, 371124, 392535, 453596, 463905, 523380, 566995, 618540, 680394, 785070, 927810, 1020591, 1133990, 1360788, 1570140, 1700985, 1855620, 2041182, 2267980, 3401970, 4082364, 5102955, 6803940, 10205910, 20411820]

約数ペア:

[(1, 20411820), (2, 10205910), (3, 6803940), (4, 5102955), (5, 4082364), (6, 3401970), (9, 2267980), (10, 2041182), (11, 1855620), (12, 1700985), (13, 1570140), (15, 1360788), (18, 1133990), (20, 1020591), (22, 927810), (26, 785070), (30, 680394), (33, 618540), (36, 566995), (39, 523380), (44, 463905), (45, 453596), (52, 392535), (55, 371124), (60, 340197), (61, 334620), (65, 314028), (66, 309270), (78, 261690), (90, 226798), (99, 206180), (110, 185562), (117, 174460), (122, 167310), (130, 157014), (132, 154635), (143, 142740), (156, 130845), (165, 123708), (169, 120780), (180, 113399), (183, 111540), (195, 104676), (198, 103090), (220, 92781), (234, 87230), (244, 83655), (260, 78507), (286, 71370), (305, 66924), (330, 61854), (338, 60390), (366, 55770), (390, 52338), (396, 51545), (429, 47580), (468, 43615), (495, 41236), (507, 40260), (549, 37180), (572, 35685), (585, 34892), (610, 33462), (660, 30927), (671, 30420), (676, 30195), (715, 28548), (732, 27885), (780, 26169), (793, 25740), (845, 24156), (858, 23790), (915, 22308), (990, 20618), (1014, 20130), (1098, 18590), (1170, 17446), (1220, 16731), (1287, 15860), (1342, 15210), (1430, 14274), (1521, 13420), (1586, 12870), (1690, 12078), (1716, 11895), (1830, 11154), (1859, 10980), (1980, 10309), (2013, 10140), (2028, 10065), (2145, 9516), (2196, 9295), (2340, 8723), (2379, 8580), (2535, 8052), (2574, 7930), (2684, 7605), (2745, 7436), (2860, 7137), (3042, 6710), (3172, 6435), (3355, 6084), (3380, 6039), (3660, 5577), (3718, 5490), (3965, 5148), (4026, 5070), (4290, 4758)]