81706560

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6547}}^1$

素因数の和:6580

約数の個数: 112

約数和(自身を含む): 279416256

約数和(自身を除く): 197709696

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 6547, 12480, 13094, 19641, 26188, 32735, 39282, 52376, 65470, 78564, 85111, 98205, 104752, 130940, 157128, 170222, 196410, 209504, 255333, 261880, 314256, 340444, 392820, 419008, 425555, 510666, 523760, 628512, 680888, 785640, 851110, 1021332, 1047520, 1257024, 1276665, 1361776, 1571280, 1702220, 2042664, 2095040, 2553330, 2723552, 3142560, 3404440, 4085328, 5106660, 5447104, 6285120, 6808880, 8170656, 10213320, 13617760, 16341312, 20426640, 27235520, 40853280, 81706560]

約数ペア:

[(1, 81706560), (2, 40853280), (3, 27235520), (4, 20426640), (5, 16341312), (6, 13617760), (8, 10213320), (10, 8170656), (12, 6808880), (13, 6285120), (15, 5447104), (16, 5106660), (20, 4085328), (24, 3404440), (26, 3142560), (30, 2723552), (32, 2553330), (39, 2095040), (40, 2042664), (48, 1702220), (52, 1571280), (60, 1361776), (64, 1276665), (65, 1257024), (78, 1047520), (80, 1021332), (96, 851110), (104, 785640), (120, 680888), (130, 628512), (156, 523760), (160, 510666), (192, 425555), (195, 419008), (208, 392820), (240, 340444), (260, 314256), (312, 261880), (320, 255333), (390, 209504), (416, 196410), (480, 170222), (520, 157128), (624, 130940), (780, 104752), (832, 98205), (960, 85111), (1040, 78564), (1248, 65470), (1560, 52376), (2080, 39282), (2496, 32735), (3120, 26188), (4160, 19641), (6240, 13094), (6547, 12480)]