320520050480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{641}}^2$

素因数の和:1508

約数の個数: 180

約数和(自身を含む): 872593369200

約数和(自身を除く): 552073318720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 199, 245, 280, 392, 398, 490, 560, 641, 784, 796, 980, 995, 1282, 1393, 1592, 1960, 1990, 2564, 2786, 3184, 3205, 3920, 3980, 4487, 5128, 5572, 6410, 6965, 7960, 8974, 9751, 10256, 11144, 12820, 13930, 15920, 17948, 19502, 22288, 22435, 25640, 27860, 31409, 35896, 39004, 44870, 48755, 51280, 55720, 62818, 71792, 78008, 89740, 97510, 111440, 125636, 127559, 156016, 157045, 179480, 195020, 251272, 255118, 314090, 358960, 390040, 410881, 502544, 510236, 628180, 637795, 780080, 821762, 892913, 1020472, 1256360, 1275590, 1643524, 1785826, 2040944, 2054405, 2512720, 2551180, 2876167, 3287048, 3571652, 4108810, 4464565, 5102360, 5752334, 6250391, 6574096, 7143304, 8217620, 8929130, 10204720, 11504668, 12500782, 14286608, 14380835, 16435240, 17858260, 20133169, 23009336, 25001564, 28761670, 31251955, 32870480, 35716520, 40266338, 46018672, 50003128, 57523340, 62503910, 71433040, 80532676, 81765319, 100006256, 100665845, 115046680, 125007820, 161065352, 163530638, 201331690, 230093360, 250015640, 322130704, 327061276, 402663380, 408826595, 500031280, 572357233, 654122552, 805326760, 817653190, 1144714466, 1308245104, 1610653520, 1635306380, 2289428932, 2861786165, 3270612760, 4006500631, 4578857864, 5723572330, 6541225520, 8013001262, 9157715728, 11447144660, 16026002524, 20032503155, 22894289320, 32052005048, 40065006310, 45788578640, 64104010096, 80130012620, 160260025240, 320520050480]

約数ペア:

[(1, 320520050480), (2, 160260025240), (4, 80130012620), (5, 64104010096), (7, 45788578640), (8, 40065006310), (10, 32052005048), (14, 22894289320), (16, 20032503155), (20, 16026002524), (28, 11447144660), (35, 9157715728), (40, 8013001262), (49, 6541225520), (56, 5723572330), (70, 4578857864), (80, 4006500631), (98, 3270612760), (112, 2861786165), (140, 2289428932), (196, 1635306380), (199, 1610653520), (245, 1308245104), (280, 1144714466), (392, 817653190), (398, 805326760), (490, 654122552), (560, 572357233), (641, 500031280), (784, 408826595), (796, 402663380), (980, 327061276), (995, 322130704), (1282, 250015640), (1393, 230093360), (1592, 201331690), (1960, 163530638), (1990, 161065352), (2564, 125007820), (2786, 115046680), (3184, 100665845), (3205, 100006256), (3920, 81765319), (3980, 80532676), (4487, 71433040), (5128, 62503910), (5572, 57523340), (6410, 50003128), (6965, 46018672), (7960, 40266338), (8974, 35716520), (9751, 32870480), (10256, 31251955), (11144, 28761670), (12820, 25001564), (13930, 23009336), (15920, 20133169), (17948, 17858260), (19502, 16435240), (22288, 14380835), (22435, 14286608), (25640, 12500782), (27860, 11504668), (31409, 10204720), (35896, 8929130), (39004, 8217620), (44870, 7143304), (48755, 6574096), (51280, 6250391), (55720, 5752334), (62818, 5102360), (71792, 4464565), (78008, 4108810), (89740, 3571652), (97510, 3287048), (111440, 2876167), (125636, 2551180), (127559, 2512720), (156016, 2054405), (157045, 2040944), (179480, 1785826), (195020, 1643524), (251272, 1275590), (255118, 1256360), (314090, 1020472), (358960, 892913), (390040, 821762), (410881, 780080), (502544, 637795), (510236, 628180)]