81457712

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:514

約数の個数: 80

約数和(自身を含む): 192249600

約数和(自身を除く): 110791888

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 101, 112, 133, 152, 202, 266, 304, 379, 404, 532, 707, 758, 808, 1064, 1414, 1516, 1616, 1919, 2128, 2653, 2828, 3032, 3838, 5306, 5656, 6064, 7201, 7676, 10612, 11312, 13433, 14402, 15352, 21224, 26866, 28804, 30704, 38279, 42448, 50407, 53732, 57608, 76558, 100814, 107464, 115216, 153116, 201628, 214928, 267953, 306232, 403256, 535906, 612464, 727301, 806512, 1071812, 1454602, 2143624, 2909204, 4287248, 5091107, 5818408, 10182214, 11636816, 20364428, 40728856, 81457712]

約数ペア:

[(1, 81457712), (2, 40728856), (4, 20364428), (7, 11636816), (8, 10182214), (14, 5818408), (16, 5091107), (19, 4287248), (28, 2909204), (38, 2143624), (56, 1454602), (76, 1071812), (101, 806512), (112, 727301), (133, 612464), (152, 535906), (202, 403256), (266, 306232), (304, 267953), (379, 214928), (404, 201628), (532, 153116), (707, 115216), (758, 107464), (808, 100814), (1064, 76558), (1414, 57608), (1516, 53732), (1616, 50407), (1919, 42448), (2128, 38279), (2653, 30704), (2828, 28804), (3032, 26866), (3838, 21224), (5306, 15352), (5656, 14402), (6064, 13433), (7201, 11312), (7676, 10612)]