20187799200

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:238

約数の個数: 864

約数和(自身を含む): 80549344512

約数和(自身を除く): 60361545312

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 23, 24, 25, 30, 32, 34, 36, 40, 45, 46, 48, 50, 51, 60, 68, 69, 71, 72, 75, 80, 85, 90, 92, 96, 100, 101, 102, 115, 120, 136, 138, 142, 144, 150, 153, 160, 170, 180, 184, 200, 202, 204, 207, 213, 225, 230, 240, 255, 272, 276, 284, 288, 300, 303, 306, 340, 345, 355, 360, 368, 391, 400, 404, 408, 414, 425, 426, 450, 460, 480, 505, 510, 544, 552, 568, 575, 600, 606, 612, 639, 680, 690, 710, 720, 736, 765, 782, 800, 808, 816, 828, 850, 852, 900, 909, 920, 1010, 1020, 1035, 1065, 1104, 1136, 1150, 1173, 1200, 1207, 1212, 1224, 1275, 1278, 1360, 1380, 1420, 1440, 1515, 1530, 1564, 1616, 1632, 1633, 1656, 1700, 1704, 1717, 1725, 1775, 1800, 1818, 1840, 1955, 2020, 2040, 2070, 2130, 2208, 2272, 2300, 2323, 2346, 2400, 2414, 2424, 2448, 2525, 2550, 2556, 2720, 2760, 2840, 3030, 3060, 3128, 3195, 3232, 3266, 3312, 3400, 3408, 3434, 3450, 3519, 3550, 3600, 3621, 3636, 3680, 3825, 3910, 4040, 4080, 4140, 4260, 4545, 4600, 4646, 4692, 4828, 4848, 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約数ペア:

[(1, 20187799200), (2, 10093899600), (3, 6729266400), (4, 5046949800), (5, 4037559840), (6, 3364633200), (8, 2523474900), (9, 2243088800), (10, 2018779920), (12, 1682316600), (15, 1345853280), (16, 1261737450), (17, 1187517600), (18, 1121544400), (20, 1009389960), (23, 877730400), (24, 841158300), (25, 807511968), (30, 672926640), (32, 630868725), (34, 593758800), (36, 560772200), (40, 504694980), (45, 448617760), (46, 438865200), (48, 420579150), (50, 403755984), (51, 395839200), (60, 336463320), (68, 296879400), (69, 292576800), (71, 284335200), (72, 280386100), (75, 269170656), (80, 252347490), (85, 237503520), (90, 224308880), (92, 219432600), (96, 210289575), (100, 201877992), (101, 199879200), (102, 197919600), (115, 175546080), (120, 168231660), (136, 148439700), (138, 146288400), (142, 142167600), (144, 140193050), (150, 134585328), (153, 131946400), (160, 126173745), (170, 118751760), (180, 112154440), (184, 109716300), (200, 100938996), (202, 99939600), (204, 98959800), (207, 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