212461600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:723

約数の個数: 144

約数和(自身を含む): 577463040

約数和(自身を除く): 365001440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 260, 310, 325, 400, 403, 416, 496, 520, 620, 650, 659, 775, 800, 806, 992, 1040, 1240, 1300, 1318, 1550, 1612, 2015, 2080, 2480, 2600, 2636, 3100, 3224, 3295, 4030, 4960, 5200, 5272, 6200, 6448, 6590, 8060, 8567, 10075, 10400, 10544, 12400, 12896, 13180, 16120, 16475, 17134, 20150, 20429, 21088, 24800, 26360, 32240, 32950, 34268, 40300, 40858, 42835, 52720, 64480, 65900, 68536, 80600, 81716, 85670, 102145, 105440, 131800, 137072, 161200, 163432, 171340, 204290, 214175, 263600, 265577, 274144, 322400, 326864, 342680, 408580, 428350, 510725, 527200, 531154, 653728, 685360, 817160, 856700, 1021450, 1062308, 1327885, 1370720, 1634320, 1713400, 2042900, 2124616, 2655770, 3268640, 3426800, 4085800, 4249232, 5311540, 6639425, 6853600, 8171600, 8498464, 10623080, 13278850, 16343200, 21246160, 26557700, 42492320, 53115400, 106230800, 212461600]

約数ペア:

[(1, 212461600), (2, 106230800), (4, 53115400), (5, 42492320), (8, 26557700), (10, 21246160), (13, 16343200), (16, 13278850), (20, 10623080), (25, 8498464), (26, 8171600), (31, 6853600), (32, 6639425), (40, 5311540), (50, 4249232), (52, 4085800), (62, 3426800), (65, 3268640), (80, 2655770), (100, 2124616), (104, 2042900), (124, 1713400), (130, 1634320), (155, 1370720), (160, 1327885), (200, 1062308), (208, 1021450), (248, 856700), (260, 817160), (310, 685360), (325, 653728), (400, 531154), (403, 527200), (416, 510725), (496, 428350), (520, 408580), (620, 342680), (650, 326864), (659, 322400), (775, 274144), (800, 265577), (806, 263600), (992, 214175), (1040, 204290), (1240, 171340), (1300, 163432), (1318, 161200), (1550, 137072), (1612, 131800), (2015, 105440), (2080, 102145), (2480, 85670), (2600, 81716), (2636, 80600), (3100, 68536), (3224, 65900), (3295, 64480), (4030, 52720), (4960, 42835), (5200, 40858), (5272, 40300), (6200, 34268), (6448, 32950), (6590, 32240), (8060, 26360), (8567, 24800), (10075, 21088), (10400, 20429), (10544, 20150), (12400, 17134), (12896, 16475), (13180, 16120)]