2788946720

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{89}}^1\times {\mathrm{571}}^1$

素因数の和:696

約数の個数: 192

約数和(自身を含む): 7783776000

約数和(自身を除く): 4994829280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 89, 98, 112, 140, 160, 178, 196, 224, 245, 280, 343, 356, 392, 445, 490, 560, 571, 623, 686, 712, 784, 890, 980, 1120, 1142, 1246, 1372, 1424, 1568, 1715, 1780, 1960, 2284, 2492, 2744, 2848, 2855, 3115, 3430, 3560, 3920, 3997, 4361, 4568, 4984, 5488, 5710, 6230, 6860, 7120, 7840, 7994, 8722, 9136, 9968, 10976, 11420, 12460, 13720, 14240, 15988, 17444, 18272, 19936, 19985, 21805, 22840, 24920, 27440, 27979, 30527, 31976, 34888, 39970, 43610, 45680, 49840, 50819, 54880, 55958, 61054, 63952, 69776, 79940, 87220, 91360, 99680, 101638, 111916, 122108, 127904, 139552, 139895, 152635, 159880, 174440, 195853, 203276, 223832, 244216, 254095, 279790, 305270, 319760, 348880, 355733, 391706, 406552, 447664, 488432, 508190, 559580, 610540, 639520, 697760, 711466, 783412, 813104, 895328, 976864, 979265, 1016380, 1119160, 1221080, 1422932, 1566824, 1626208, 1778665, 1958530, 2032760, 2238320, 2442160, 2490131, 2845864, 3133648, 3557330, 3917060, 4065520, 4476640, 4884320, 4980262, 5691728, 6267296, 7114660, 7834120, 8131040, 9960524, 11383456, 12450655, 14229320, 15668240, 17430917, 19921048, 24901310, 28458640, 31336480, 34861834, 39842096, 49802620, 56917280, 69723668, 79684192, 87154585, 99605240, 139447336, 174309170, 199210480, 278894672, 348618340, 398420960, 557789344, 697236680, 1394473360, 2788946720]

約数ペア:

[(1, 2788946720), (2, 1394473360), (4, 697236680), (5, 557789344), (7, 398420960), (8, 348618340), (10, 278894672), (14, 199210480), (16, 174309170), (20, 139447336), (28, 99605240), (32, 87154585), (35, 79684192), (40, 69723668), (49, 56917280), (56, 49802620), (70, 39842096), (80, 34861834), (89, 31336480), (98, 28458640), (112, 24901310), (140, 19921048), (160, 17430917), (178, 15668240), (196, 14229320), (224, 12450655), (245, 11383456), (280, 9960524), (343, 8131040), (356, 7834120), (392, 7114660), (445, 6267296), (490, 5691728), (560, 4980262), (571, 4884320), (623, 4476640), (686, 4065520), (712, 3917060), (784, 3557330), (890, 3133648), (980, 2845864), (1120, 2490131), (1142, 2442160), (1246, 2238320), (1372, 2032760), (1424, 1958530), (1568, 1778665), (1715, 1626208), (1780, 1566824), (1960, 1422932), (2284, 1221080), (2492, 1119160), (2744, 1016380), (2848, 979265), (2855, 976864), (3115, 895328), (3430, 813104), (3560, 783412), (3920, 711466), (3997, 697760), (4361, 639520), (4568, 610540), (4984, 559580), (5488, 508190), (5710, 488432), (6230, 447664), (6860, 406552), (7120, 391706), (7840, 355733), (7994, 348880), (8722, 319760), (9136, 305270), (9968, 279790), (10976, 254095), (11420, 244216), (12460, 223832), (13720, 203276), (14240, 195853), (15988, 174440), (17444, 159880), (18272, 152635), (19936, 139895), (19985, 139552), (21805, 127904), (22840, 122108), (24920, 111916), (27440, 101638), (27979, 99680), (30527, 91360), (31976, 87220), (34888, 79940), (39970, 69776), (43610, 63952), (45680, 61054), (49840, 55958), (50819, 54880)]