42680840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 102384000

約数和(自身を除く): 59703160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 445, 631, 712, 760, 890, 1262, 1691, 1780, 2524, 3155, 3382, 3560, 5048, 6310, 6764, 8455, 11989, 12620, 13528, 16910, 23978, 25240, 33820, 47956, 56159, 59945, 67640, 95912, 112318, 119890, 224636, 239780, 280795, 449272, 479560, 561590, 1067021, 1123180, 2134042, 2246360, 4268084, 5335105, 8536168, 10670210, 21340420, 42680840]

約数ペア:

[(1, 42680840), (2, 21340420), (4, 10670210), (5, 8536168), (8, 5335105), (10, 4268084), (19, 2246360), (20, 2134042), (38, 1123180), (40, 1067021), (76, 561590), (89, 479560), (95, 449272), (152, 280795), (178, 239780), (190, 224636), (356, 119890), (380, 112318), (445, 95912), (631, 67640), (712, 59945), (760, 56159), (890, 47956), (1262, 33820), (1691, 25240), (1780, 23978), (2524, 16910), (3155, 13528), (3382, 12620), (3560, 11989), (5048, 8455), (6310, 6764)]