648967440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{245821}}^1$

素因数の和:245848

約数の個数: 80

約数和(自身を含む): 2194698816

約数和(自身を除く): 1545731376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 245821, 491642, 737463, 983284, 1229105, 1474926, 1966568, 2458210, 2704031, 2949852, 3687315, 3933136, 4916420, 5408062, 5899704, 7374630, 8112093, 9832840, 10816124, 11799408, 13520155, 14749260, 16224186, 19665680, 21632248, 27040310, 29498520, 32448372, 40560465, 43264496, 54080620, 58997040, 64896744, 81120930, 108161240, 129793488, 162241860, 216322480, 324483720, 648967440]

約数ペア:

[(1, 648967440), (2, 324483720), (3, 216322480), (4, 162241860), (5, 129793488), (6, 108161240), (8, 81120930), (10, 64896744), (11, 58997040), (12, 54080620), (15, 43264496), (16, 40560465), (20, 32448372), (22, 29498520), (24, 27040310), (30, 21632248), (33, 19665680), (40, 16224186), (44, 14749260), (48, 13520155), (55, 11799408), (60, 10816124), (66, 9832840), (80, 8112093), (88, 7374630), (110, 5899704), (120, 5408062), (132, 4916420), (165, 3933136), (176, 3687315), (220, 2949852), (240, 2704031), (264, 2458210), (330, 1966568), (440, 1474926), (528, 1229105), (660, 983284), (880, 737463), (1320, 491642), (2640, 245821)]