989460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 3144960

約数和(自身を除く): 2155500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 239, 276, 345, 414, 460, 478, 690, 717, 828, 956, 1035, 1195, 1380, 1434, 2070, 2151, 2390, 2868, 3585, 4140, 4302, 4780, 5497, 7170, 8604, 10755, 10994, 14340, 16491, 21510, 21988, 27485, 32982, 43020, 49473, 54970, 65964, 82455, 98946, 109940, 164910, 197892, 247365, 329820, 494730, 989460]

約数ペア:

[(1, 989460), (2, 494730), (3, 329820), (4, 247365), (5, 197892), (6, 164910), (9, 109940), (10, 98946), (12, 82455), (15, 65964), (18, 54970), (20, 49473), (23, 43020), (30, 32982), (36, 27485), (45, 21988), (46, 21510), (60, 16491), (69, 14340), (90, 10994), (92, 10755), (115, 8604), (138, 7170), (180, 5497), (207, 4780), (230, 4302), (239, 4140), (276, 3585), (345, 2868), (414, 2390), (460, 2151), (478, 2070), (690, 1434), (717, 1380), (828, 1195), (956, 1035)]