1991521080

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{331}}^1\times {\mathrm{619}}^1$

素因数の和:976

約数の個数: 192

約数和(自身を含む): 6743318400

約数和(自身を除く): 4751797320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 331, 360, 405, 486, 540, 619, 648, 662, 810, 972, 993, 1080, 1215, 1238, 1324, 1620, 1655, 1857, 1944, 1986, 2430, 2476, 2648, 2979, 3095, 3240, 3310, 3714, 3972, 4860, 4952, 4965, 5571, 5958, 6190, 6620, 7428, 7944, 8937, 9285, 9720, 9930, 11142, 11916, 12380, 13240, 14856, 14895, 16713, 17874, 18570, 19860, 22284, 23832, 24760, 26811, 27855, 29790, 33426, 35748, 37140, 39720, 44568, 44685, 50139, 53622, 55710, 59580, 66852, 71496, 74280, 80433, 83565, 89370, 100278, 107244, 111420, 119160, 133704, 134055, 150417, 160866, 167130, 178740, 200556, 204889, 214488, 222840, 250695, 268110, 300834, 321732, 334260, 357480, 401112, 402165, 409778, 501390, 536220, 601668, 614667, 643464, 668520, 752085, 804330, 819556, 1002780, 1024445, 1072440, 1203336, 1229334, 1504170, 1608660, 1639112, 1844001, 2005560, 2048890, 2458668, 3008340, 3073335, 3217320, 3688002, 4097780, 4917336, 5532003, 6016680, 6146670, 7376004, 8195560, 9220005, 11064006, 12293340, 14752008, 16596009, 18440010, 22128012, 24586680, 27660015, 33192018, 36880020, 44256024, 49788027, 55320030, 66384036, 73760040, 82980045, 99576054, 110640060, 132768072, 165960090, 199152108, 221280120, 248940135, 331920180, 398304216, 497880270, 663840360, 995760540, 1991521080]

約数ペア:

[(1, 1991521080), (2, 995760540), (3, 663840360), (4, 497880270), (5, 398304216), (6, 331920180), (8, 248940135), (9, 221280120), (10, 199152108), (12, 165960090), (15, 132768072), (18, 110640060), (20, 99576054), (24, 82980045), (27, 73760040), (30, 66384036), (36, 55320030), (40, 49788027), (45, 44256024), (54, 36880020), (60, 33192018), (72, 27660015), (81, 24586680), (90, 22128012), (108, 18440010), (120, 16596009), (135, 14752008), (162, 12293340), (180, 11064006), (216, 9220005), (243, 8195560), (270, 7376004), (324, 6146670), (331, 6016680), (360, 5532003), (405, 4917336), (486, 4097780), (540, 3688002), (619, 3217320), (648, 3073335), (662, 3008340), (810, 2458668), (972, 2048890), (993, 2005560), (1080, 1844001), (1215, 1639112), (1238, 1608660), (1324, 1504170), (1620, 1229334), (1655, 1203336), (1857, 1072440), (1944, 1024445), (1986, 1002780), (2430, 819556), (2476, 804330), (2648, 752085), (2979, 668520), (3095, 643464), (3240, 614667), (3310, 601668), (3714, 536220), (3972, 501390), (4860, 409778), (4952, 402165), (4965, 401112), (5571, 357480), (5958, 334260), (6190, 321732), (6620, 300834), (7428, 268110), (7944, 250695), (8937, 222840), (9285, 214488), (9720, 204889), (9930, 200556), (11142, 178740), (11916, 167130), (12380, 160866), (13240, 150417), (14856, 134055), (14895, 133704), (16713, 119160), (17874, 111420), (18570, 107244), (19860, 100278), (22284, 89370), (23832, 83565), (24760, 80433), (26811, 74280), (27855, 71496), (29790, 66852), (33426, 59580), (35748, 55710), (37140, 53622), (39720, 50139), (44568, 44685)]