199440280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 491596560

約数和(自身を除く): 292156280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 163, 169, 181, 260, 326, 338, 362, 520, 652, 676, 724, 815, 845, 905, 1304, 1352, 1448, 1630, 1690, 1810, 2119, 2353, 3260, 3380, 3620, 4238, 4706, 6520, 6760, 7240, 8476, 9412, 10595, 11765, 16952, 18824, 21190, 23530, 27547, 29503, 30589, 42380, 47060, 55094, 59006, 61178, 84760, 94120, 110188, 118012, 122356, 137735, 147515, 152945, 220376, 236024, 244712, 275470, 295030, 305890, 383539, 550940, 590060, 611780, 767078, 1101880, 1180120, 1223560, 1534156, 1917695, 3068312, 3835390, 4986007, 7670780, 9972014, 15341560, 19944028, 24930035, 39888056, 49860070, 99720140, 199440280]

約数ペア:

[(1, 199440280), (2, 99720140), (4, 49860070), (5, 39888056), (8, 24930035), (10, 19944028), (13, 15341560), (20, 9972014), (26, 7670780), (40, 4986007), (52, 3835390), (65, 3068312), (104, 1917695), (130, 1534156), (163, 1223560), (169, 1180120), (181, 1101880), (260, 767078), (326, 611780), (338, 590060), (362, 550940), (520, 383539), (652, 305890), (676, 295030), (724, 275470), (815, 244712), (845, 236024), (905, 220376), (1304, 152945), (1352, 147515), (1448, 137735), (1630, 122356), (1690, 118012), (1810, 110188), (2119, 94120), (2353, 84760), (3260, 61178), (3380, 59006), (3620, 55094), (4238, 47060), (4706, 42380), (6520, 30589), (6760, 29503), (7240, 27547), (8476, 23530), (9412, 21190), (10595, 18824), (11765, 16952)]