65439920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:223

約数の個数: 160

約数和(自身を含む): 191237760

約数和(自身を除く): 125797840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 89, 91, 101, 104, 112, 130, 140, 178, 182, 202, 208, 260, 280, 356, 364, 404, 445, 455, 505, 520, 560, 623, 707, 712, 728, 808, 890, 910, 1010, 1040, 1157, 1246, 1313, 1414, 1424, 1456, 1616, 1780, 1820, 2020, 2314, 2492, 2626, 2828, 3115, 3535, 3560, 3640, 4040, 4628, 4984, 5252, 5656, 5785, 6230, 6565, 7070, 7120, 7280, 8080, 8099, 8989, 9191, 9256, 9968, 10504, 11312, 11570, 12460, 13130, 14140, 16198, 17978, 18382, 18512, 21008, 23140, 24920, 26260, 28280, 32396, 35956, 36764, 40495, 44945, 45955, 46280, 49840, 52520, 56560, 62923, 64792, 71912, 73528, 80990, 89890, 91910, 92560, 105040, 116857, 125846, 129584, 143824, 147056, 161980, 179780, 183820, 233714, 251692, 314615, 323960, 359560, 367640, 467428, 503384, 584285, 629230, 647920, 719120, 735280, 817999, 934856, 1006768, 1168570, 1258460, 1635998, 1869712, 2337140, 2516920, 3271996, 4089995, 4674280, 5033840, 6543992, 8179990, 9348560, 13087984, 16359980, 32719960, 65439920]

約数ペア:

[(1, 65439920), (2, 32719960), (4, 16359980), (5, 13087984), (7, 9348560), (8, 8179990), (10, 6543992), (13, 5033840), (14, 4674280), (16, 4089995), (20, 3271996), (26, 2516920), (28, 2337140), (35, 1869712), (40, 1635998), (52, 1258460), (56, 1168570), (65, 1006768), (70, 934856), (80, 817999), (89, 735280), (91, 719120), (101, 647920), (104, 629230), (112, 584285), (130, 503384), (140, 467428), (178, 367640), (182, 359560), (202, 323960), (208, 314615), (260, 251692), (280, 233714), (356, 183820), (364, 179780), (404, 161980), (445, 147056), (455, 143824), (505, 129584), (520, 125846), (560, 116857), (623, 105040), (707, 92560), (712, 91910), (728, 89890), (808, 80990), (890, 73528), (910, 71912), (1010, 64792), (1040, 62923), (1157, 56560), (1246, 52520), (1313, 49840), (1414, 46280), (1424, 45955), (1456, 44945), (1616, 40495), (1780, 36764), (1820, 35956), (2020, 32396), (2314, 28280), (2492, 26260), (2626, 24920), (2828, 23140), (3115, 21008), (3535, 18512), (3560, 18382), (3640, 17978), (4040, 16198), (4628, 14140), (4984, 13130), (5252, 12460), (5656, 11570), (5785, 11312), (6230, 10504), (6565, 9968), (7070, 9256), (7120, 9191), (7280, 8989), (8080, 8099)]