19725420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:77

約数の個数: 192

約数和(自身を含む): 68866560

約数和(自身を除く): 49141140

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 19, 20, 22, 26, 30, 33, 38, 39, 44, 52, 55, 57, 60, 65, 66, 76, 78, 95, 110, 114, 121, 130, 132, 143, 156, 165, 190, 195, 209, 220, 228, 242, 247, 260, 285, 286, 330, 363, 380, 390, 418, 429, 484, 494, 570, 572, 605, 627, 660, 715, 726, 741, 780, 836, 858, 988, 1045, 1140, 1210, 1235, 1254, 1331, 1430, 1452, 1482, 1573, 1716, 1815, 2090, 2145, 2299, 2420, 2470, 2508, 2662, 2717, 2860, 2964, 3135, 3146, 3630, 3705, 3993, 4180, 4290, 4598, 4719, 4940, 5324, 5434, 6270, 6292, 6655, 6897, 7260, 7410, 7865, 7986, 8151, 8580, 9196, 9438, 10868, 11495, 12540, 13310, 13585, 13794, 14820, 15730, 15972, 16302, 17303, 18876, 19965, 22990, 23595, 25289, 26620, 27170, 27588, 29887, 31460, 32604, 34485, 34606, 39930, 40755, 45980, 47190, 50578, 51909, 54340, 59774, 68970, 69212, 75867, 79860, 81510, 86515, 89661, 94380, 101156, 103818, 119548, 126445, 137940, 149435, 151734, 163020, 173030, 179322, 207636, 252890, 259545, 298870, 303468, 328757, 346060, 358644, 379335, 448305, 505780, 519090, 597740, 657514, 758670, 896610, 986271, 1038180, 1315028, 1517340, 1643785, 1793220, 1972542, 3287570, 3945084, 4931355, 6575140, 9862710, 19725420]

約数ペア:

[(1, 19725420), (2, 9862710), (3, 6575140), (4, 4931355), (5, 3945084), (6, 3287570), (10, 1972542), (11, 1793220), (12, 1643785), (13, 1517340), (15, 1315028), (19, 1038180), (20, 986271), (22, 896610), (26, 758670), (30, 657514), (33, 597740), (38, 519090), (39, 505780), (44, 448305), (52, 379335), (55, 358644), (57, 346060), (60, 328757), (65, 303468), (66, 298870), (76, 259545), (78, 252890), (95, 207636), (110, 179322), (114, 173030), (121, 163020), (130, 151734), (132, 149435), (143, 137940), (156, 126445), (165, 119548), (190, 103818), (195, 101156), (209, 94380), (220, 89661), (228, 86515), (242, 81510), (247, 79860), (260, 75867), (285, 69212), (286, 68970), (330, 59774), (363, 54340), (380, 51909), (390, 50578), (418, 47190), (429, 45980), (484, 40755), (494, 39930), (570, 34606), (572, 34485), (605, 32604), (627, 31460), (660, 29887), (715, 27588), (726, 27170), (741, 26620), (780, 25289), (836, 23595), (858, 22990), (988, 19965), (1045, 18876), (1140, 17303), (1210, 16302), (1235, 15972), (1254, 15730), (1331, 14820), (1430, 13794), (1452, 13585), (1482, 13310), (1573, 12540), (1716, 11495), (1815, 10868), (2090, 9438), (2145, 9196), (2299, 8580), (2420, 8151), (2470, 7986), (2508, 7865), (2662, 7410), (2717, 7260), (2860, 6897), (2964, 6655), (3135, 6292), (3146, 6270), (3630, 5434), (3705, 5324), (3993, 4940), (4180, 4719), (4290, 4598)]