20172528

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:207

約数の個数: 120

約数和(自身を含む): 60836880

約数和(自身を除く): 40664352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 73, 76, 101, 114, 144, 146, 152, 171, 202, 219, 228, 292, 303, 304, 342, 404, 438, 456, 584, 606, 657, 684, 808, 876, 909, 912, 1168, 1212, 1314, 1368, 1387, 1616, 1752, 1818, 1919, 2424, 2628, 2736, 2774, 3504, 3636, 3838, 4161, 4848, 5256, 5548, 5757, 7272, 7373, 7676, 8322, 10512, 11096, 11514, 12483, 14544, 14746, 15352, 16644, 17271, 22119, 22192, 23028, 24966, 29492, 30704, 33288, 34542, 44238, 46056, 49932, 58984, 66357, 66576, 69084, 88476, 92112, 99864, 117968, 132714, 138168, 140087, 176952, 199728, 265428, 276336, 280174, 353904, 420261, 530856, 560348, 840522, 1061712, 1120696, 1260783, 1681044, 2241392, 2521566, 3362088, 5043132, 6724176, 10086264, 20172528]

約数ペア:

[(1, 20172528), (2, 10086264), (3, 6724176), (4, 5043132), (6, 3362088), (8, 2521566), (9, 2241392), (12, 1681044), (16, 1260783), (18, 1120696), (19, 1061712), (24, 840522), (36, 560348), (38, 530856), (48, 420261), (57, 353904), (72, 280174), (73, 276336), (76, 265428), (101, 199728), (114, 176952), (144, 140087), (146, 138168), (152, 132714), (171, 117968), (202, 99864), (219, 92112), (228, 88476), (292, 69084), (303, 66576), (304, 66357), (342, 58984), (404, 49932), (438, 46056), (456, 44238), (584, 34542), (606, 33288), (657, 30704), (684, 29492), (808, 24966), (876, 23028), (909, 22192), (912, 22119), (1168, 17271), (1212, 16644), (1314, 15352), (1368, 14746), (1387, 14544), (1616, 12483), (1752, 11514), (1818, 11096), (1919, 10512), (2424, 8322), (2628, 7676), (2736, 7373), (2774, 7272), (3504, 5757), (3636, 5548), (3838, 5256), (4161, 4848)]