81963840

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{12197}}^1$

素因数の和:12224

約数の個数: 112

約数和(自身を含む): 297436032

約数和(自身を除く): 215472192

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, 6720, 12197, 24394, 36591, 48788, 60985, 73182, 85379, 97576, 121970, 146364, 170758, 182955, 195152, 243940, 256137, 292728, 341516, 365910, 390304, 426895, 487880, 512274, 585456, 683032, 731820, 780608, 853790, 975760, 1024548, 1170912, 1280685, 1366064, 1463640, 1707580, 1951520, 2049096, 2341824, 2561370, 2732128, 2927280, 3415160, 3903040, 4098192, 5122740, 5464256, 5854560, 6830320, 8196384, 10245480, 11709120, 13660640, 16392768, 20490960, 27321280, 40981920, 81963840]

約数ペア:

[(1, 81963840), (2, 40981920), (3, 27321280), (4, 20490960), (5, 16392768), (6, 13660640), (7, 11709120), (8, 10245480), (10, 8196384), (12, 6830320), (14, 5854560), (15, 5464256), (16, 5122740), (20, 4098192), (21, 3903040), (24, 3415160), (28, 2927280), (30, 2732128), (32, 2561370), (35, 2341824), (40, 2049096), (42, 1951520), (48, 1707580), (56, 1463640), (60, 1366064), (64, 1280685), (70, 1170912), (80, 1024548), (84, 975760), (96, 853790), (105, 780608), (112, 731820), (120, 683032), (140, 585456), (160, 512274), (168, 487880), (192, 426895), (210, 390304), (224, 365910), (240, 341516), (280, 292728), (320, 256137), (336, 243940), (420, 195152), (448, 182955), (480, 170758), (560, 146364), (672, 121970), (840, 97576), (960, 85379), (1120, 73182), (1344, 60985), (1680, 48788), (2240, 36591), (3360, 24394), (6720, 12197)]