642132512

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:255

約数の個数: 144

約数和(自身を含む): 1581491520

約数和(自身を除く): 939359008

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 32, 38, 56, 62, 76, 112, 124, 133, 152, 157, 217, 224, 248, 266, 304, 314, 434, 496, 532, 589, 608, 628, 868, 961, 992, 1064, 1099, 1178, 1256, 1736, 1922, 2128, 2198, 2356, 2512, 2983, 3472, 3844, 4123, 4256, 4396, 4712, 4867, 5024, 5966, 6727, 6944, 7688, 8246, 8792, 9424, 9734, 11932, 13454, 15376, 16492, 17584, 18259, 18848, 19468, 20881, 23864, 26908, 30752, 32984, 34069, 35168, 36518, 38936, 41762, 47728, 53816, 65968, 68138, 73036, 77872, 83524, 92473, 95456, 107632, 127813, 131936, 136276, 146072, 150877, 155744, 167048, 184946, 215264, 255626, 272552, 292144, 301754, 334096, 369892, 511252, 545104, 584288, 603508, 647311, 668192, 739784, 1022504, 1056139, 1090208, 1207016, 1294622, 1479568, 2045008, 2112278, 2414032, 2589244, 2866663, 2959136, 4090016, 4224556, 4828064, 5178488, 5733326, 8449112, 10356976, 11466652, 16898224, 20066641, 20713952, 22933304, 33796448, 40133282, 45866608, 80266564, 91733216, 160533128, 321066256, 642132512]

約数ペア:

[(1, 642132512), (2, 321066256), (4, 160533128), (7, 91733216), (8, 80266564), (14, 45866608), (16, 40133282), (19, 33796448), (28, 22933304), (31, 20713952), (32, 20066641), (38, 16898224), (56, 11466652), (62, 10356976), (76, 8449112), (112, 5733326), (124, 5178488), (133, 4828064), (152, 4224556), (157, 4090016), (217, 2959136), (224, 2866663), (248, 2589244), (266, 2414032), (304, 2112278), (314, 2045008), (434, 1479568), (496, 1294622), (532, 1207016), (589, 1090208), (608, 1056139), (628, 1022504), (868, 739784), (961, 668192), (992, 647311), (1064, 603508), (1099, 584288), (1178, 545104), (1256, 511252), (1736, 369892), (1922, 334096), (2128, 301754), (2198, 292144), (2356, 272552), (2512, 255626), (2983, 215264), (3472, 184946), (3844, 167048), (4123, 155744), (4256, 150877), (4396, 146072), (4712, 136276), (4867, 131936), (5024, 127813), (5966, 107632), (6727, 95456), (6944, 92473), (7688, 83524), (8246, 77872), (8792, 73036), (9424, 68138), (9734, 65968), (11932, 53816), (13454, 47728), (15376, 41762), (16492, 38936), (17584, 36518), (18259, 35168), (18848, 34069), (19468, 32984), (20881, 30752), (23864, 26908)]