67977880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1997}}^1$

素因数の和:2068

約数の個数: 64

約数和(自身を含む): 163995840

約数和(自身を除く): 96017960

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 74, 92, 115, 148, 184, 185, 230, 296, 370, 460, 740, 851, 920, 1480, 1702, 1997, 3404, 3994, 4255, 6808, 7988, 8510, 9985, 15976, 17020, 19970, 34040, 39940, 45931, 73889, 79880, 91862, 147778, 183724, 229655, 295556, 367448, 369445, 459310, 591112, 738890, 918620, 1477780, 1699447, 1837240, 2955560, 3398894, 6797788, 8497235, 13595576, 16994470, 33988940, 67977880]

約数ペア:

[(1, 67977880), (2, 33988940), (4, 16994470), (5, 13595576), (8, 8497235), (10, 6797788), (20, 3398894), (23, 2955560), (37, 1837240), (40, 1699447), (46, 1477780), (74, 918620), (92, 738890), (115, 591112), (148, 459310), (184, 369445), (185, 367448), (230, 295556), (296, 229655), (370, 183724), (460, 147778), (740, 91862), (851, 79880), (920, 73889), (1480, 45931), (1702, 39940), (1997, 34040), (3404, 19970), (3994, 17020), (4255, 15976), (6808, 9985), (7988, 8510)]