31185700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 87494400

約数和(自身を除く): 56308700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 25, 26, 28, 35, 46, 50, 52, 65, 70, 91, 92, 100, 115, 130, 140, 149, 161, 175, 182, 230, 260, 298, 299, 322, 325, 350, 364, 455, 460, 575, 596, 598, 644, 650, 700, 745, 805, 910, 1043, 1150, 1196, 1300, 1490, 1495, 1610, 1820, 1937, 2086, 2093, 2275, 2300, 2980, 2990, 3220, 3427, 3725, 3874, 4025, 4172, 4186, 4550, 5215, 5980, 6854, 7450, 7475, 7748, 8050, 8372, 9100, 9685, 10430, 10465, 13559, 13708, 14900, 14950, 16100, 17135, 19370, 20860, 20930, 23989, 26075, 27118, 29900, 34270, 38740, 41860, 44551, 47978, 48425, 52150, 52325, 54236, 67795, 68540, 85675, 89102, 95956, 96850, 104300, 104650, 119945, 135590, 171350, 178204, 193700, 209300, 222755, 239890, 271180, 311857, 338975, 342700, 445510, 479780, 599725, 623714, 677950, 891020, 1113775, 1199450, 1247428, 1355900, 1559285, 2227550, 2398900, 3118570, 4455100, 6237140, 7796425, 15592850, 31185700]

約数ペア:

[(1, 31185700), (2, 15592850), (4, 7796425), (5, 6237140), (7, 4455100), (10, 3118570), (13, 2398900), (14, 2227550), (20, 1559285), (23, 1355900), (25, 1247428), (26, 1199450), (28, 1113775), (35, 891020), (46, 677950), (50, 623714), (52, 599725), (65, 479780), (70, 445510), (91, 342700), (92, 338975), (100, 311857), (115, 271180), (130, 239890), (140, 222755), (149, 209300), (161, 193700), (175, 178204), (182, 171350), (230, 135590), (260, 119945), (298, 104650), (299, 104300), (322, 96850), (325, 95956), (350, 89102), (364, 85675), (455, 68540), (460, 67795), (575, 54236), (596, 52325), (598, 52150), (644, 48425), (650, 47978), (700, 44551), (745, 41860), (805, 38740), (910, 34270), (1043, 29900), (1150, 27118), (1196, 26075), (1300, 23989), (1490, 20930), (1495, 20860), (1610, 19370), (1820, 17135), (1937, 16100), (2086, 14950), (2093, 14900), (2275, 13708), (2300, 13559), (2980, 10465), (2990, 10430), (3220, 9685), (3427, 9100), (3725, 8372), (3874, 8050), (4025, 7748), (4172, 7475), (4186, 7450), (4550, 6854), (5215, 5980)]