20219850

素因数分解:

$2^1\times 3^2\times 5^2\times 7^3\times {\mathrm{131}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 63835200

約数和(自身を除く): 43615350

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 49, 50, 63, 70, 75, 90, 98, 105, 126, 131, 147, 150, 175, 210, 225, 245, 262, 294, 315, 343, 350, 393, 441, 450, 490, 525, 630, 655, 686, 735, 786, 882, 917, 1029, 1050, 1179, 1225, 1310, 1470, 1575, 1715, 1834, 1965, 2058, 2205, 2358, 2450, 2751, 3087, 3150, 3275, 3430, 3675, 3930, 4410, 4585, 5145, 5502, 5895, 6174, 6419, 6550, 7350, 8253, 8575, 9170, 9825, 10290, 11025, 11790, 12838, 13755, 15435, 16506, 17150, 19257, 19650, 22050, 22925, 25725, 27510, 29475, 30870, 32095, 38514, 41265, 44933, 45850, 51450, 57771, 58950, 64190, 68775, 77175, 82530, 89866, 96285, 115542, 134799, 137550, 154350, 160475, 192570, 206325, 224665, 269598, 288855, 320950, 404397, 412650, 449330, 481425, 577710, 673995, 808794, 962850, 1123325, 1347990, 1444275, 2021985, 2246650, 2888550, 3369975, 4043970, 6739950, 10109925, 20219850]

約数ペア:

[(1, 20219850), (2, 10109925), (3, 6739950), (5, 4043970), (6, 3369975), (7, 2888550), (9, 2246650), (10, 2021985), (14, 1444275), (15, 1347990), (18, 1123325), (21, 962850), (25, 808794), (30, 673995), (35, 577710), (42, 481425), (45, 449330), (49, 412650), (50, 404397), (63, 320950), (70, 288855), (75, 269598), (90, 224665), (98, 206325), (105, 192570), (126, 160475), (131, 154350), (147, 137550), (150, 134799), (175, 115542), (210, 96285), (225, 89866), (245, 82530), (262, 77175), (294, 68775), (315, 64190), (343, 58950), (350, 57771), (393, 51450), (441, 45850), (450, 44933), (490, 41265), (525, 38514), (630, 32095), (655, 30870), (686, 29475), (735, 27510), (786, 25725), (882, 22925), (917, 22050), (1029, 19650), (1050, 19257), (1179, 17150), (1225, 16506), (1310, 15435), (1470, 13755), (1575, 12838), (1715, 11790), (1834, 11025), (1965, 10290), (2058, 9825), (2205, 9170), (2358, 8575), (2450, 8253), (2751, 7350), (3087, 6550), (3150, 6419), (3275, 6174), (3430, 5895), (3675, 5502), (3930, 5145), (4410, 4585)]