21840480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{523}}^1$

素因数の和:573

約数の個数: 144

約数和(自身を含む): 77248080

約数和(自身を除く): 55407600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 232, 240, 261, 288, 290, 348, 360, 435, 464, 480, 522, 523, 580, 696, 720, 870, 928, 1044, 1046, 1160, 1305, 1392, 1440, 1569, 1740, 2088, 2092, 2320, 2610, 2615, 2784, 3138, 3480, 4176, 4184, 4640, 4707, 5220, 5230, 6276, 6960, 7845, 8352, 8368, 9414, 10440, 10460, 12552, 13920, 15167, 15690, 16736, 18828, 20880, 20920, 23535, 25104, 30334, 31380, 37656, 41760, 41840, 45501, 47070, 50208, 60668, 62760, 75312, 75835, 83680, 91002, 94140, 121336, 125520, 136503, 150624, 151670, 182004, 188280, 227505, 242672, 251040, 273006, 303340, 364008, 376560, 455010, 485344, 546012, 606680, 682515, 728016, 753120, 910020, 1092024, 1213360, 1365030, 1456032, 1820040, 2184048, 2426720, 2730060, 3640080, 4368096, 5460120, 7280160, 10920240, 21840480]

約数ペア:

[(1, 21840480), (2, 10920240), (3, 7280160), (4, 5460120), (5, 4368096), (6, 3640080), (8, 2730060), (9, 2426720), (10, 2184048), (12, 1820040), (15, 1456032), (16, 1365030), (18, 1213360), (20, 1092024), (24, 910020), (29, 753120), (30, 728016), (32, 682515), (36, 606680), (40, 546012), (45, 485344), (48, 455010), (58, 376560), (60, 364008), (72, 303340), (80, 273006), (87, 251040), (90, 242672), (96, 227505), (116, 188280), (120, 182004), (144, 151670), (145, 150624), (160, 136503), (174, 125520), (180, 121336), (232, 94140), (240, 91002), (261, 83680), (288, 75835), (290, 75312), (348, 62760), (360, 60668), (435, 50208), (464, 47070), (480, 45501), (522, 41840), (523, 41760), (580, 37656), (696, 31380), (720, 30334), (870, 25104), (928, 23535), (1044, 20920), (1046, 20880), (1160, 18828), (1305, 16736), (1392, 15690), (1440, 15167), (1569, 13920), (1740, 12552), (2088, 10460), (2092, 10440), (2320, 9414), (2610, 8368), (2615, 8352), (2784, 7845), (3138, 6960), (3480, 6276), (4176, 5230), (4184, 5220), (4640, 4707)]