217355320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{283}}^1$

素因数の和:525

約数の個数: 128

約数和(自身を含む): 606896640

約数和(自身を除く): 389541320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 211, 260, 280, 283, 364, 422, 455, 520, 566, 728, 844, 910, 1055, 1132, 1415, 1477, 1688, 1820, 1981, 2110, 2264, 2743, 2830, 2954, 3640, 3679, 3962, 4220, 5486, 5660, 5908, 7358, 7385, 7924, 8440, 9905, 10972, 11320, 11816, 13715, 14716, 14770, 15848, 18395, 19201, 19810, 21944, 25753, 27430, 29432, 29540, 36790, 38402, 39620, 51506, 54860, 59080, 59713, 73580, 76804, 79240, 96005, 103012, 109720, 119426, 128765, 147160, 153608, 192010, 206024, 238852, 257530, 298565, 384020, 417991, 477704, 515060, 597130, 768040, 776269, 835982, 1030120, 1194260, 1552538, 1671964, 2089955, 2388520, 3105076, 3343928, 3881345, 4179910, 5433883, 6210152, 7762690, 8359820, 10867766, 15525380, 16719640, 21735532, 27169415, 31050760, 43471064, 54338830, 108677660, 217355320]

約数ペア:

[(1, 217355320), (2, 108677660), (4, 54338830), (5, 43471064), (7, 31050760), (8, 27169415), (10, 21735532), (13, 16719640), (14, 15525380), (20, 10867766), (26, 8359820), (28, 7762690), (35, 6210152), (40, 5433883), (52, 4179910), (56, 3881345), (65, 3343928), (70, 3105076), (91, 2388520), (104, 2089955), (130, 1671964), (140, 1552538), (182, 1194260), (211, 1030120), (260, 835982), (280, 776269), (283, 768040), (364, 597130), (422, 515060), (455, 477704), (520, 417991), (566, 384020), (728, 298565), (844, 257530), (910, 238852), (1055, 206024), (1132, 192010), (1415, 153608), (1477, 147160), (1688, 128765), (1820, 119426), (1981, 109720), (2110, 103012), (2264, 96005), (2743, 79240), (2830, 76804), (2954, 73580), (3640, 59713), (3679, 59080), (3962, 54860), (4220, 51506), (5486, 39620), (5660, 38402), (5908, 36790), (7358, 29540), (7385, 29432), (7924, 27430), (8440, 25753), (9905, 21944), (10972, 19810), (11320, 19201), (11816, 18395), (13715, 15848), (14716, 14770)]