79197040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{281}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 199737216

約数和(自身を除く): 120540176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 271, 281, 520, 542, 562, 1040, 1084, 1124, 1355, 1405, 2168, 2248, 2710, 2810, 3523, 3653, 4336, 4496, 5420, 5620, 7046, 7306, 10840, 11240, 14092, 14612, 17615, 18265, 21680, 22480, 28184, 29224, 35230, 36530, 56368, 58448, 70460, 73060, 76151, 140920, 146120, 152302, 281840, 292240, 304604, 380755, 609208, 761510, 989963, 1218416, 1523020, 1979926, 3046040, 3959852, 4949815, 6092080, 7919704, 9899630, 15839408, 19799260, 39598520, 79197040]

約数ペア:

[(1, 79197040), (2, 39598520), (4, 19799260), (5, 15839408), (8, 9899630), (10, 7919704), (13, 6092080), (16, 4949815), (20, 3959852), (26, 3046040), (40, 1979926), (52, 1523020), (65, 1218416), (80, 989963), (104, 761510), (130, 609208), (208, 380755), (260, 304604), (271, 292240), (281, 281840), (520, 152302), (542, 146120), (562, 140920), (1040, 76151), (1084, 73060), (1124, 70460), (1355, 58448), (1405, 56368), (2168, 36530), (2248, 35230), (2710, 29224), (2810, 28184), (3523, 22480), (3653, 21680), (4336, 18265), (4496, 17615), (5420, 14612), (5620, 14092), (7046, 11240), (7306, 10840)]