21413200

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:149

約数の個数: 120

約数和(自身を含む): 56460672

約数和(自身を除く): 35047472

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 47, 50, 67, 68, 80, 85, 94, 100, 134, 136, 170, 188, 200, 235, 268, 272, 335, 340, 376, 400, 425, 470, 536, 670, 680, 752, 799, 850, 940, 1072, 1139, 1175, 1340, 1360, 1598, 1675, 1700, 1880, 2278, 2350, 2680, 3149, 3196, 3350, 3400, 3760, 3995, 4556, 4700, 5360, 5695, 6298, 6392, 6700, 6800, 7990, 9112, 9400, 11390, 12596, 12784, 13400, 15745, 15980, 18224, 18800, 19975, 22780, 25192, 26800, 28475, 31490, 31960, 39950, 45560, 50384, 53533, 56950, 62980, 63920, 78725, 79900, 91120, 107066, 113900, 125960, 157450, 159800, 214132, 227800, 251920, 267665, 314900, 319600, 428264, 455600, 535330, 629800, 856528, 1070660, 1259600, 1338325, 2141320, 2676650, 4282640, 5353300, 10706600, 21413200]

約数ペア:

[(1, 21413200), (2, 10706600), (4, 5353300), (5, 4282640), (8, 2676650), (10, 2141320), (16, 1338325), (17, 1259600), (20, 1070660), (25, 856528), (34, 629800), (40, 535330), (47, 455600), (50, 428264), (67, 319600), (68, 314900), (80, 267665), (85, 251920), (94, 227800), (100, 214132), (134, 159800), (136, 157450), (170, 125960), (188, 113900), (200, 107066), (235, 91120), (268, 79900), (272, 78725), (335, 63920), (340, 62980), (376, 56950), (400, 53533), (425, 50384), (470, 45560), (536, 39950), (670, 31960), (680, 31490), (752, 28475), (799, 26800), (850, 25192), (940, 22780), (1072, 19975), (1139, 18800), (1175, 18224), (1340, 15980), (1360, 15745), (1598, 13400), (1675, 12784), (1700, 12596), (1880, 11390), (2278, 9400), (2350, 9112), (2680, 7990), (3149, 6800), (3196, 6700), (3350, 6392), (3400, 6298), (3760, 5695), (3995, 5360), (4556, 4700)]