81100960

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:326

約数の個数: 96

約数和(自身を含む): 201180672

約数和(自身を除く): 120079712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 83, 124, 155, 160, 166, 197, 248, 310, 332, 394, 415, 496, 620, 664, 788, 830, 985, 992, 1240, 1328, 1576, 1660, 1970, 2480, 2573, 2656, 3152, 3320, 3940, 4960, 5146, 6107, 6304, 6640, 7880, 10292, 12214, 12865, 13280, 15760, 16351, 20584, 24428, 25730, 30535, 31520, 32702, 41168, 48856, 51460, 61070, 65404, 81755, 82336, 97712, 102920, 122140, 130808, 163510, 195424, 205840, 244280, 261616, 327020, 411680, 488560, 506881, 523232, 654040, 977120, 1013762, 1308080, 2027524, 2534405, 2616160, 4055048, 5068810, 8110096, 10137620, 16220192, 20275240, 40550480, 81100960]

約数ペア:

[(1, 81100960), (2, 40550480), (4, 20275240), (5, 16220192), (8, 10137620), (10, 8110096), (16, 5068810), (20, 4055048), (31, 2616160), (32, 2534405), (40, 2027524), (62, 1308080), (80, 1013762), (83, 977120), (124, 654040), (155, 523232), (160, 506881), (166, 488560), (197, 411680), (248, 327020), (310, 261616), (332, 244280), (394, 205840), (415, 195424), (496, 163510), (620, 130808), (664, 122140), (788, 102920), (830, 97712), (985, 82336), (992, 81755), (1240, 65404), (1328, 61070), (1576, 51460), (1660, 48856), (1970, 41168), (2480, 32702), (2573, 31520), (2656, 30535), (3152, 25730), (3320, 24428), (3940, 20584), (4960, 16351), (5146, 15760), (6107, 13280), (6304, 12865), (6640, 12214), (7880, 10292)]