20576528

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 49175424

約数和(自身を除く): 28598896

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 101, 107, 112, 119, 136, 202, 214, 238, 272, 404, 428, 476, 707, 749, 808, 856, 952, 1414, 1498, 1616, 1712, 1717, 1819, 1904, 2828, 2996, 3434, 3638, 5656, 5992, 6868, 7276, 10807, 11312, 11984, 12019, 12733, 13736, 14552, 21614, 24038, 25466, 27472, 29104, 43228, 48076, 50932, 75649, 86456, 96152, 101864, 151298, 172912, 183719, 192304, 203728, 302596, 367438, 605192, 734876, 1210384, 1286033, 1469752, 2572066, 2939504, 5144132, 10288264, 20576528]

約数ペア:

[(1, 20576528), (2, 10288264), (4, 5144132), (7, 2939504), (8, 2572066), (14, 1469752), (16, 1286033), (17, 1210384), (28, 734876), (34, 605192), (56, 367438), (68, 302596), (101, 203728), (107, 192304), (112, 183719), (119, 172912), (136, 151298), (202, 101864), (214, 96152), (238, 86456), (272, 75649), (404, 50932), (428, 48076), (476, 43228), (707, 29104), (749, 27472), (808, 25466), (856, 24038), (952, 21614), (1414, 14552), (1498, 13736), (1616, 12733), (1712, 12019), (1717, 11984), (1819, 11312), (1904, 10807), (2828, 7276), (2996, 6868), (3434, 5992), (3638, 5656)]