28800720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:230

約数の個数: 240

約数和(自身を含む): 110899152

約数和(自身を除く): 82098432

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 102, 104, 117, 120, 130, 136, 144, 153, 156, 170, 180, 181, 195, 204, 208, 221, 234, 240, 255, 260, 272, 306, 312, 340, 360, 362, 390, 408, 442, 468, 510, 520, 543, 585, 612, 624, 663, 680, 720, 724, 765, 780, 816, 884, 905, 936, 1020, 1040, 1086, 1105, 1170, 1224, 1326, 1360, 1448, 1530, 1560, 1629, 1768, 1810, 1872, 1989, 2040, 2172, 2210, 2340, 2353, 2448, 2652, 2715, 2896, 3060, 3077, 3120, 3258, 3315, 3536, 3620, 3978, 4080, 4344, 4420, 4680, 4706, 5304, 5430, 6120, 6154, 6516, 6630, 7059, 7240, 7956, 8145, 8688, 8840, 9231, 9360, 9412, 9945, 10608, 10860, 11765, 12240, 12308, 13032, 13260, 14118, 14480, 15385, 15912, 16290, 17680, 18462, 18824, 19890, 21177, 21720, 23530, 24616, 26064, 26520, 27693, 28236, 30770, 31824, 32580, 35295, 36924, 37648, 39780, 40001, 42354, 43440, 46155, 47060, 49232, 53040, 55386, 56472, 61540, 65160, 70590, 73848, 79560, 80002, 84708, 92310, 94120, 105885, 110772, 112944, 120003, 123080, 130320, 138465, 141180, 147696, 159120, 160004, 169416, 184620, 188240, 200005, 211770, 221544, 240006, 246160, 276930, 282360, 320008, 338832, 360009, 369240, 400010, 423540, 443088, 480012, 553860, 564720, 600015, 640016, 720018, 738480, 800020, 847080, 960024, 1107720, 1200030, 1440036, 1600040, 1694160, 1800045, 1920048, 2215440, 2400060, 2880072, 3200080, 3600090, 4800120, 5760144, 7200180, 9600240, 14400360, 28800720]

約数ペア:

[(1, 28800720), (2, 14400360), (3, 9600240), (4, 7200180), (5, 5760144), (6, 4800120), (8, 3600090), (9, 3200080), (10, 2880072), (12, 2400060), (13, 2215440), (15, 1920048), (16, 1800045), (17, 1694160), (18, 1600040), (20, 1440036), (24, 1200030), (26, 1107720), (30, 960024), (34, 847080), (36, 800020), (39, 738480), (40, 720018), (45, 640016), (48, 600015), (51, 564720), (52, 553860), (60, 480012), (65, 443088), (68, 423540), (72, 400010), (78, 369240), (80, 360009), (85, 338832), (90, 320008), (102, 282360), (104, 276930), (117, 246160), (120, 240006), (130, 221544), (136, 211770), (144, 200005), (153, 188240), (156, 184620), (170, 169416), (180, 160004), (181, 159120), (195, 147696), (204, 141180), (208, 138465), (221, 130320), (234, 123080), (240, 120003), (255, 112944), (260, 110772), (272, 105885), (306, 94120), (312, 92310), (340, 84708), (360, 80002), (362, 79560), (390, 73848), (408, 70590), (442, 65160), (468, 61540), (510, 56472), (520, 55386), (543, 53040), (585, 49232), (612, 47060), (624, 46155), (663, 43440), (680, 42354), (720, 40001), (724, 39780), (765, 37648), (780, 36924), (816, 35295), (884, 32580), (905, 31824), (936, 30770), (1020, 28236), (1040, 27693), (1086, 26520), (1105, 26064), (1170, 24616), (1224, 23530), (1326, 21720), (1360, 21177), (1448, 19890), (1530, 18824), (1560, 18462), (1629, 17680), (1768, 16290), (1810, 15912), (1872, 15385), (1989, 14480), (2040, 14118), (2172, 13260), (2210, 13032), (2340, 12308), (2353, 12240), (2448, 11765), (2652, 10860), (2715, 10608), (2896, 9945), (3060, 9412), (3077, 9360), (3120, 9231), (3258, 8840), (3315, 8688), (3536, 8145), (3620, 7956), (3978, 7240), (4080, 7059), (4344, 6630), (4420, 6516), (4680, 6154), (4706, 6120), (5304, 5430)]