977895920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1\times {\mathrm{673}}^1$

素因数の和:1170

約数の個数: 80

約数和(自身を含む): 2337787872

約数和(自身を除く): 1359891952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 443, 656, 673, 820, 886, 1346, 1640, 1772, 2215, 2692, 3280, 3365, 3544, 4430, 5384, 6730, 7088, 8860, 10768, 13460, 17720, 18163, 26920, 27593, 35440, 36326, 53840, 55186, 72652, 90815, 110372, 137965, 145304, 181630, 220744, 275930, 290608, 298139, 363260, 441488, 551860, 596278, 726520, 1103720, 1192556, 1453040, 1490695, 2207440, 2385112, 2981390, 4770224, 5962780, 11925560, 12223699, 23851120, 24447398, 48894796, 61118495, 97789592, 122236990, 195579184, 244473980, 488947960, 977895920]

約数ペア:

[(1, 977895920), (2, 488947960), (4, 244473980), (5, 195579184), (8, 122236990), (10, 97789592), (16, 61118495), (20, 48894796), (40, 24447398), (41, 23851120), (80, 12223699), (82, 11925560), (164, 5962780), (205, 4770224), (328, 2981390), (410, 2385112), (443, 2207440), (656, 1490695), (673, 1453040), (820, 1192556), (886, 1103720), (1346, 726520), (1640, 596278), (1772, 551860), (2215, 441488), (2692, 363260), (3280, 298139), (3365, 290608), (3544, 275930), (4430, 220744), (5384, 181630), (6730, 145304), (7088, 137965), (8860, 110372), (10768, 90815), (13460, 72652), (17720, 55186), (18163, 53840), (26920, 36326), (27593, 35440)]