21876400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{601}}^1$

素因数の和:639

約数の個数: 120

約数和(自身を含む): 64794464

約数和(自身を除く): 42918064

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 175, 182, 200, 208, 260, 280, 325, 350, 364, 400, 455, 520, 560, 601, 650, 700, 728, 910, 1040, 1202, 1300, 1400, 1456, 1820, 2275, 2404, 2600, 2800, 3005, 3640, 4207, 4550, 4808, 5200, 6010, 7280, 7813, 8414, 9100, 9616, 12020, 15025, 15626, 16828, 18200, 21035, 24040, 30050, 31252, 33656, 36400, 39065, 42070, 48080, 54691, 60100, 62504, 67312, 78130, 84140, 105175, 109382, 120200, 125008, 156260, 168280, 195325, 210350, 218764, 240400, 273455, 312520, 336560, 390650, 420700, 437528, 546910, 625040, 781300, 841400, 875056, 1093820, 1367275, 1562600, 1682800, 2187640, 2734550, 3125200, 4375280, 5469100, 10938200, 21876400]

約数ペア:

[(1, 21876400), (2, 10938200), (4, 5469100), (5, 4375280), (7, 3125200), (8, 2734550), (10, 2187640), (13, 1682800), (14, 1562600), (16, 1367275), (20, 1093820), (25, 875056), (26, 841400), (28, 781300), (35, 625040), (40, 546910), (50, 437528), (52, 420700), (56, 390650), (65, 336560), (70, 312520), (80, 273455), (91, 240400), (100, 218764), (104, 210350), (112, 195325), (130, 168280), (140, 156260), (175, 125008), (182, 120200), (200, 109382), (208, 105175), (260, 84140), (280, 78130), (325, 67312), (350, 62504), (364, 60100), (400, 54691), (455, 48080), (520, 42070), (560, 39065), (601, 36400), (650, 33656), (700, 31252), (728, 30050), (910, 24040), (1040, 21035), (1202, 18200), (1300, 16828), (1400, 15626), (1456, 15025), (1820, 12020), (2275, 9616), (2404, 9100), (2600, 8414), (2800, 7813), (3005, 7280), (3640, 6010), (4207, 5200), (4550, 4808)]