90917120

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 254110080

約数和(自身を除く): 163192960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 112, 128, 139, 140, 146, 160, 224, 256, 278, 280, 292, 320, 365, 448, 511, 556, 560, 584, 640, 695, 730, 896, 973, 1022, 1112, 1120, 1168, 1280, 1390, 1460, 1792, 1946, 2044, 2224, 2240, 2336, 2555, 2780, 2920, 3892, 4088, 4448, 4480, 4672, 4865, 5110, 5560, 5840, 7784, 8176, 8896, 8960, 9344, 9730, 10147, 10220, 11120, 11680, 15568, 16352, 17792, 18688, 19460, 20294, 20440, 22240, 23360, 31136, 32704, 35584, 38920, 40588, 40880, 44480, 46720, 50735, 62272, 65408, 71029, 77840, 81176, 81760, 88960, 93440, 101470, 124544, 130816, 142058, 155680, 162352, 163520, 177920, 202940, 249088, 284116, 311360, 324704, 327040, 355145, 405880, 568232, 622720, 649408, 654080, 710290, 811760, 1136464, 1245440, 1298816, 1420580, 1623520, 2272928, 2597632, 2841160, 3247040, 4545856, 5682320, 6494080, 9091712, 11364640, 12988160, 18183424, 22729280, 45458560, 90917120]

約数ペア:

[(1, 90917120), (2, 45458560), (4, 22729280), (5, 18183424), (7, 12988160), (8, 11364640), (10, 9091712), (14, 6494080), (16, 5682320), (20, 4545856), (28, 3247040), (32, 2841160), (35, 2597632), (40, 2272928), (56, 1623520), (64, 1420580), (70, 1298816), (73, 1245440), (80, 1136464), (112, 811760), (128, 710290), (139, 654080), (140, 649408), (146, 622720), (160, 568232), (224, 405880), (256, 355145), (278, 327040), (280, 324704), (292, 311360), (320, 284116), (365, 249088), (448, 202940), (511, 177920), (556, 163520), (560, 162352), (584, 155680), (640, 142058), (695, 130816), (730, 124544), (896, 101470), (973, 93440), (1022, 88960), (1112, 81760), (1120, 81176), (1168, 77840), (1280, 71029), (1390, 65408), (1460, 62272), (1792, 50735), (1946, 46720), (2044, 44480), (2224, 40880), (2240, 40588), (2336, 38920), (2555, 35584), (2780, 32704), (2920, 31136), (3892, 23360), (4088, 22240), (4448, 20440), (4480, 20294), (4672, 19460), (4865, 18688), (5110, 17792), (5560, 16352), (5840, 15568), (7784, 11680), (8176, 11120), (8896, 10220), (8960, 10147), (9344, 9730)]