31213000

素因数分解:

$2^3\times 5^3\times 7^4\times {\mathrm{13}}^1$

素因数の和:62

約数の個数: 160

約数和(自身を含む): 91760760

約数和(自身を除く): 60547760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 91, 98, 100, 104, 125, 130, 140, 175, 182, 196, 200, 245, 250, 260, 280, 325, 343, 350, 364, 392, 455, 490, 500, 520, 637, 650, 686, 700, 728, 875, 910, 980, 1000, 1225, 1274, 1300, 1372, 1400, 1625, 1715, 1750, 1820, 1960, 2275, 2401, 2450, 2548, 2600, 2744, 3185, 3250, 3430, 3500, 3640, 4459, 4550, 4802, 4900, 5096, 6125, 6370, 6500, 6860, 7000, 8575, 8918, 9100, 9604, 9800, 11375, 12005, 12250, 12740, 13000, 13720, 15925, 17150, 17836, 18200, 19208, 22295, 22750, 24010, 24500, 25480, 31213, 31850, 34300, 35672, 42875, 44590, 45500, 48020, 49000, 60025, 62426, 63700, 68600, 79625, 85750, 89180, 91000, 96040, 111475, 120050, 124852, 127400, 156065, 159250, 171500, 178360, 222950, 240100, 249704, 300125, 312130, 318500, 343000, 445900, 480200, 557375, 600250, 624260, 637000, 780325, 891800, 1114750, 1200500, 1248520, 1560650, 2229500, 2401000, 3121300, 3901625, 4459000, 6242600, 7803250, 15606500, 31213000]

約数ペア:

[(1, 31213000), (2, 15606500), (4, 7803250), (5, 6242600), (7, 4459000), (8, 3901625), (10, 3121300), (13, 2401000), (14, 2229500), (20, 1560650), (25, 1248520), (26, 1200500), (28, 1114750), (35, 891800), (40, 780325), (49, 637000), (50, 624260), (52, 600250), (56, 557375), (65, 480200), (70, 445900), (91, 343000), (98, 318500), (100, 312130), (104, 300125), (125, 249704), (130, 240100), (140, 222950), (175, 178360), (182, 171500), (196, 159250), (200, 156065), (245, 127400), (250, 124852), (260, 120050), (280, 111475), (325, 96040), (343, 91000), (350, 89180), (364, 85750), (392, 79625), (455, 68600), (490, 63700), (500, 62426), (520, 60025), (637, 49000), (650, 48020), (686, 45500), (700, 44590), (728, 42875), (875, 35672), (910, 34300), (980, 31850), (1000, 31213), (1225, 25480), (1274, 24500), (1300, 24010), (1372, 22750), (1400, 22295), (1625, 19208), (1715, 18200), (1750, 17836), (1820, 17150), (1960, 15925), (2275, 13720), (2401, 13000), (2450, 12740), (2548, 12250), (2600, 12005), (2744, 11375), (3185, 9800), (3250, 9604), (3430, 9100), (3500, 8918), (3640, 8575), (4459, 7000), (4550, 6860), (4802, 6500), (4900, 6370), (5096, 6125)]