320426470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1579}}^1$

素因数の和:1829

約数の個数: 64

約数和(自身を含む): 713502720

約数和(自身を除く): 393076250

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 223, 446, 455, 910, 1115, 1561, 1579, 2230, 2899, 3122, 3158, 5798, 7805, 7895, 11053, 14495, 15610, 15790, 20293, 20527, 22106, 28990, 40586, 41054, 55265, 101465, 102635, 110530, 143689, 202930, 205270, 287378, 352117, 704234, 718445, 1436890, 1760585, 2464819, 3521170, 4577521, 4929638, 9155042, 12324095, 22887605, 24648190, 32042647, 45775210, 64085294, 160213235, 320426470]

約数ペア:

[(1, 320426470), (2, 160213235), (5, 64085294), (7, 45775210), (10, 32042647), (13, 24648190), (14, 22887605), (26, 12324095), (35, 9155042), (65, 4929638), (70, 4577521), (91, 3521170), (130, 2464819), (182, 1760585), (223, 1436890), (446, 718445), (455, 704234), (910, 352117), (1115, 287378), (1561, 205270), (1579, 202930), (2230, 143689), (2899, 110530), (3122, 102635), (3158, 101465), (5798, 55265), (7805, 41054), (7895, 40586), (11053, 28990), (14495, 22106), (15610, 20527), (15790, 20293)]