320673920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2309}}^1$

素因数の和:2366

約数の個数: 128

約数和(自身を含む): 904780800

約数和(自身を除く): 584106880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1736, 1984, 2170, 2240, 2309, 2480, 3472, 3968, 4340, 4480, 4618, 4960, 6944, 8680, 9236, 9920, 11545, 13888, 16163, 17360, 18472, 19840, 23090, 27776, 32326, 34720, 36944, 46180, 64652, 69440, 71579, 73888, 80815, 92360, 129304, 138880, 143158, 147776, 161630, 184720, 258608, 286316, 295552, 323260, 357895, 369440, 501053, 517216, 572632, 646520, 715790, 738880, 1002106, 1034432, 1145264, 1293040, 1431580, 1477760, 2004212, 2068864, 2290528, 2505265, 2586080, 2863160, 4008424, 4581056, 5010530, 5172160, 5726320, 8016848, 9162112, 10021060, 10344320, 11452640, 16033696, 20042120, 22905280, 32067392, 40084240, 45810560, 64134784, 80168480, 160336960, 320673920]

約数ペア:

[(1, 320673920), (2, 160336960), (4, 80168480), (5, 64134784), (7, 45810560), (8, 40084240), (10, 32067392), (14, 22905280), (16, 20042120), (20, 16033696), (28, 11452640), (31, 10344320), (32, 10021060), (35, 9162112), (40, 8016848), (56, 5726320), (62, 5172160), (64, 5010530), (70, 4581056), (80, 4008424), (112, 2863160), (124, 2586080), (128, 2505265), (140, 2290528), (155, 2068864), (160, 2004212), (217, 1477760), (224, 1431580), (248, 1293040), (280, 1145264), (310, 1034432), (320, 1002106), (434, 738880), (448, 715790), (496, 646520), (560, 572632), (620, 517216), (640, 501053), (868, 369440), (896, 357895), (992, 323260), (1085, 295552), (1120, 286316), (1240, 258608), (1736, 184720), (1984, 161630), (2170, 147776), (2240, 143158), (2309, 138880), (2480, 129304), (3472, 92360), (3968, 80815), (4340, 73888), (4480, 71579), (4618, 69440), (4960, 64652), (6944, 46180), (8680, 36944), (9236, 34720), (9920, 32326), (11545, 27776), (13888, 23090), (16163, 19840), (17360, 18472)]