20553120

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{2039}}^1$

素因数の和:2067

約数の個数: 144

約数和(自身を含む): 80196480

約数和(自身を除く): 59643360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2039, 2520, 3360, 4078, 5040, 6117, 8156, 10080, 10195, 12234, 14273, 16312, 18351, 20390, 24468, 28546, 30585, 32624, 36702, 40780, 42819, 48936, 57092, 61170, 65248, 71365, 73404, 81560, 85638, 91755, 97872, 114184, 122340, 128457, 142730, 146808, 163120, 171276, 183510, 195744, 214095, 228368, 244680, 256914, 285460, 293616, 326240, 342552, 367020, 428190, 456736, 489360, 513828, 570920, 587232, 642285, 685104, 734040, 856380, 978720, 1027656, 1141840, 1284570, 1370208, 1468080, 1712760, 2055312, 2283680, 2569140, 2936160, 3425520, 4110624, 5138280, 6851040, 10276560, 20553120]

約数ペア:

[(1, 20553120), (2, 10276560), (3, 6851040), (4, 5138280), (5, 4110624), (6, 3425520), (7, 2936160), (8, 2569140), (9, 2283680), (10, 2055312), (12, 1712760), (14, 1468080), (15, 1370208), (16, 1284570), (18, 1141840), (20, 1027656), (21, 978720), (24, 856380), (28, 734040), (30, 685104), (32, 642285), (35, 587232), (36, 570920), (40, 513828), (42, 489360), (45, 456736), (48, 428190), (56, 367020), (60, 342552), (63, 326240), (70, 293616), (72, 285460), (80, 256914), (84, 244680), (90, 228368), (96, 214095), (105, 195744), (112, 183510), (120, 171276), (126, 163120), (140, 146808), (144, 142730), (160, 128457), (168, 122340), (180, 114184), (210, 97872), (224, 91755), (240, 85638), (252, 81560), (280, 73404), (288, 71365), (315, 65248), (336, 61170), (360, 57092), (420, 48936), (480, 42819), (504, 40780), (560, 36702), (630, 32624), (672, 30585), (720, 28546), (840, 24468), (1008, 20390), (1120, 18351), (1260, 16312), (1440, 14273), (1680, 12234), (2016, 10195), (2039, 10080), (2520, 8156), (3360, 6117), (4078, 5040)]