78984720

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:284

約数の個数: 240

約数和(自身を含む): 292481280

約数和(自身を除く): 213496560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 102, 108, 120, 135, 136, 144, 153, 162, 170, 180, 204, 216, 239, 240, 243, 255, 270, 272, 306, 324, 340, 360, 405, 408, 432, 459, 478, 486, 510, 540, 612, 648, 680, 717, 720, 765, 810, 816, 918, 956, 972, 1020, 1080, 1195, 1215, 1224, 1296, 1360, 1377, 1434, 1530, 1620, 1836, 1912, 1944, 2040, 2151, 2160, 2295, 2390, 2430, 2448, 2754, 2868, 3060, 3240, 3585, 3672, 3824, 3888, 4063, 4080, 4131, 4302, 4590, 4780, 4860, 5508, 5736, 6120, 6453, 6480, 6885, 7170, 7344, 8126, 8262, 8604, 9180, 9560, 9720, 10755, 11016, 11472, 12189, 12240, 12906, 13770, 14340, 16252, 16524, 17208, 18360, 19120, 19359, 19440, 20315, 20655, 21510, 22032, 24378, 25812, 27540, 28680, 32265, 32504, 33048, 34416, 36567, 36720, 38718, 40630, 41310, 43020, 48756, 51624, 55080, 57360, 58077, 60945, 64530, 65008, 66096, 73134, 77436, 81260, 82620, 86040, 96795, 97512, 103248, 109701, 110160, 116154, 121890, 129060, 146268, 154872, 162520, 165240, 172080, 182835, 193590, 195024, 219402, 232308, 243780, 258120, 290385, 292536, 309744, 325040, 329103, 330480, 365670, 387180, 438804, 464616, 487560, 516240, 548505, 580770, 585072, 658206, 731340, 774360, 877608, 929232, 975120, 987309, 1097010, 1161540, 1316412, 1462680, 1548720, 1645515, 1755216, 1974618, 2194020, 2323080, 2632824, 2925360, 3291030, 3949236, 4388040, 4646160, 4936545, 5265648, 6582060, 7898472, 8776080, 9873090, 13164120, 15796944, 19746180, 26328240, 39492360, 78984720]

約数ペア:

[(1, 78984720), (2, 39492360), (3, 26328240), (4, 19746180), (5, 15796944), (6, 13164120), (8, 9873090), (9, 8776080), (10, 7898472), (12, 6582060), (15, 5265648), (16, 4936545), (17, 4646160), (18, 4388040), (20, 3949236), (24, 3291030), (27, 2925360), (30, 2632824), (34, 2323080), (36, 2194020), (40, 1974618), (45, 1755216), (48, 1645515), (51, 1548720), (54, 1462680), (60, 1316412), (68, 1161540), (72, 1097010), (80, 987309), (81, 975120), (85, 929232), (90, 877608), (102, 774360), (108, 731340), (120, 658206), (135, 585072), (136, 580770), (144, 548505), (153, 516240), (162, 487560), (170, 464616), (180, 438804), (204, 387180), (216, 365670), (239, 330480), (240, 329103), (243, 325040), (255, 309744), (270, 292536), (272, 290385), (306, 258120), (324, 243780), (340, 232308), (360, 219402), (405, 195024), (408, 193590), (432, 182835), (459, 172080), (478, 165240), (486, 162520), (510, 154872), (540, 146268), (612, 129060), (648, 121890), (680, 116154), (717, 110160), (720, 109701), (765, 103248), (810, 97512), (816, 96795), (918, 86040), (956, 82620), (972, 81260), (1020, 77436), (1080, 73134), (1195, 66096), (1215, 65008), (1224, 64530), (1296, 60945), (1360, 58077), (1377, 57360), (1434, 55080), (1530, 51624), (1620, 48756), (1836, 43020), (1912, 41310), (1944, 40630), (2040, 38718), (2151, 36720), (2160, 36567), (2295, 34416), (2390, 33048), (2430, 32504), (2448, 32265), (2754, 28680), (2868, 27540), (3060, 25812), (3240, 24378), (3585, 22032), (3672, 21510), (3824, 20655), (3888, 20315), (4063, 19440), (4080, 19359), (4131, 19120), (4302, 18360), (4590, 17208), (4780, 16524), (4860, 16252), (5508, 14340), (5736, 13770), (6120, 12906), (6453, 12240), (6480, 12189), (6885, 11472), (7170, 11016), (7344, 10755), (8126, 9720), (8262, 9560), (8604, 9180)]