642243840

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{23893}}^1$

素因数の和:23924

約数の個数: 144

約数和(自身を含む): 2344288128

約数和(自身を除く): 1702044288

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, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 23893, 26880, 47786, 71679, 95572, 119465, 143358, 167251, 191144, 238930, 286716, 334502, 358395, 382288, 477860, 501753, 573432, 669004, 716790, 764576, 836255, 955720, 1003506, 1146864, 1338008, 1433580, 1529152, 1672510, 1911440, 2007012, 2293728, 2508765, 2676016, 2867160, 3058304, 3345020, 3822880, 4014024, 4587456, 5017530, 5352032, 5734320, 6116608, 6690040, 7645760, 8028048, 9174912, 10035060, 10704064, 11468640, 13380080, 15291520, 16056096, 18349824, 20070120, 21408128, 22937280, 26760160, 30583040, 32112192, 40140240, 42816256, 45874560, 53520320, 64224384, 80280480, 91749120, 107040640, 128448768, 160560960, 214081280, 321121920, 642243840]

約数ペア:

[(1, 642243840), (2, 321121920), (3, 214081280), (4, 160560960), (5, 128448768), (6, 107040640), (7, 91749120), (8, 80280480), (10, 64224384), (12, 53520320), (14, 45874560), (15, 42816256), (16, 40140240), (20, 32112192), (21, 30583040), (24, 26760160), (28, 22937280), (30, 21408128), (32, 20070120), (35, 18349824), (40, 16056096), (42, 15291520), (48, 13380080), (56, 11468640), (60, 10704064), (64, 10035060), (70, 9174912), (80, 8028048), (84, 7645760), (96, 6690040), (105, 6116608), (112, 5734320), (120, 5352032), (128, 5017530), (140, 4587456), (160, 4014024), (168, 3822880), (192, 3345020), (210, 3058304), (224, 2867160), (240, 2676016), (256, 2508765), (280, 2293728), (320, 2007012), (336, 1911440), (384, 1672510), (420, 1529152), (448, 1433580), (480, 1338008), (560, 1146864), (640, 1003506), (672, 955720), (768, 836255), (840, 764576), (896, 716790), (960, 669004), (1120, 573432), (1280, 501753), (1344, 477860), (1680, 382288), (1792, 358395), (1920, 334502), (2240, 286716), (2688, 238930), (3360, 191144), (3840, 167251), (4480, 143358), (5376, 119465), (6720, 95572), (8960, 71679), (13440, 47786), (23893, 26880)]