649122560

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1297}}^1$

素因数の和:1358

約数の個数: 144

約数和(自身を含む): 1719216576

約数和(自身を除く): 1070094016

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 128, 136, 160, 170, 184, 230, 256, 272, 320, 340, 368, 391, 460, 544, 640, 680, 736, 782, 920, 1088, 1280, 1297, 1360, 1472, 1564, 1840, 1955, 2176, 2594, 2720, 2944, 3128, 3680, 3910, 4352, 5188, 5440, 5888, 6256, 6485, 7360, 7820, 10376, 10880, 12512, 12970, 14720, 15640, 20752, 21760, 22049, 25024, 25940, 29440, 29831, 31280, 41504, 44098, 50048, 51880, 59662, 62560, 83008, 88196, 100096, 103760, 110245, 119324, 125120, 149155, 166016, 176392, 207520, 220490, 238648, 250240, 298310, 332032, 352784, 415040, 440980, 477296, 500480, 507127, 596620, 705568, 830080, 881960, 954592, 1014254, 1193240, 1411136, 1660160, 1763920, 1909184, 2028508, 2386480, 2535635, 2822272, 3527840, 3818368, 4057016, 4772960, 5071270, 5644544, 7055680, 7636736, 8114032, 9545920, 10142540, 14111360, 16228064, 19091840, 20285080, 28222720, 32456128, 38183680, 40570160, 64912256, 81140320, 129824512, 162280640, 324561280, 649122560]

約数ペア:

[(1, 649122560), (2, 324561280), (4, 162280640), (5, 129824512), (8, 81140320), (10, 64912256), (16, 40570160), (17, 38183680), (20, 32456128), (23, 28222720), (32, 20285080), (34, 19091840), (40, 16228064), (46, 14111360), (64, 10142540), (68, 9545920), (80, 8114032), (85, 7636736), (92, 7055680), (115, 5644544), (128, 5071270), (136, 4772960), (160, 4057016), (170, 3818368), (184, 3527840), (230, 2822272), (256, 2535635), (272, 2386480), (320, 2028508), (340, 1909184), (368, 1763920), (391, 1660160), (460, 1411136), (544, 1193240), (640, 1014254), (680, 954592), (736, 881960), (782, 830080), (920, 705568), (1088, 596620), (1280, 507127), (1297, 500480), (1360, 477296), (1472, 440980), (1564, 415040), (1840, 352784), (1955, 332032), (2176, 298310), (2594, 250240), (2720, 238648), (2944, 220490), (3128, 207520), (3680, 176392), (3910, 166016), (4352, 149155), (5188, 125120), (5440, 119324), (5888, 110245), (6256, 103760), (6485, 100096), (7360, 88196), (7820, 83008), (10376, 62560), (10880, 59662), (12512, 51880), (12970, 50048), (14720, 44098), (15640, 41504), (20752, 31280), (21760, 29831), (22049, 29440), (25024, 25940)]