31140120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:817

約数の個数: 128

約数和(自身を含む): 105338880

約数和(自身を除く): 74198760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 88, 93, 110, 120, 124, 132, 155, 165, 186, 220, 248, 264, 310, 330, 341, 372, 440, 465, 620, 660, 682, 744, 761, 930, 1023, 1240, 1320, 1364, 1522, 1705, 1860, 2046, 2283, 2728, 3044, 3410, 3720, 3805, 4092, 4566, 5115, 6088, 6820, 7610, 8184, 8371, 9132, 10230, 11415, 13640, 15220, 16742, 18264, 20460, 22830, 23591, 25113, 30440, 33484, 40920, 41855, 45660, 47182, 50226, 66968, 70773, 83710, 91320, 94364, 100452, 117955, 125565, 141546, 167420, 188728, 200904, 235910, 251130, 259501, 283092, 334840, 353865, 471820, 502260, 519002, 566184, 707730, 778503, 943640, 1004520, 1038004, 1297505, 1415460, 1557006, 2076008, 2595010, 2830920, 3114012, 3892515, 5190020, 6228024, 7785030, 10380040, 15570060, 31140120]

約数ペア:

[(1, 31140120), (2, 15570060), (3, 10380040), (4, 7785030), (5, 6228024), (6, 5190020), (8, 3892515), (10, 3114012), (11, 2830920), (12, 2595010), (15, 2076008), (20, 1557006), (22, 1415460), (24, 1297505), (30, 1038004), (31, 1004520), (33, 943640), (40, 778503), (44, 707730), (55, 566184), (60, 519002), (62, 502260), (66, 471820), (88, 353865), (93, 334840), (110, 283092), (120, 259501), (124, 251130), (132, 235910), (155, 200904), (165, 188728), (186, 167420), (220, 141546), (248, 125565), (264, 117955), (310, 100452), (330, 94364), (341, 91320), (372, 83710), (440, 70773), (465, 66968), (620, 50226), (660, 47182), (682, 45660), (744, 41855), (761, 40920), (930, 33484), (1023, 30440), (1240, 25113), (1320, 23591), (1364, 22830), (1522, 20460), (1705, 18264), (1860, 16742), (2046, 15220), (2283, 13640), (2728, 11415), (3044, 10230), (3410, 9132), (3720, 8371), (3805, 8184), (4092, 7610), (4566, 6820), (5115, 6088)]