68421420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4271}}^1$

素因数の和:4375

約数の個数: 72

約数和(自身を含む): 209926080

約数和(自身を除く): 141504660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 4271, 5340, 8010, 8542, 12813, 16020, 17084, 21355, 25626, 38439, 42710, 51252, 64065, 76878, 85420, 128130, 153756, 192195, 256260, 380119, 384390, 760238, 768780, 1140357, 1520476, 1900595, 2280714, 3421071, 3801190, 4561428, 5701785, 6842142, 7602380, 11403570, 13684284, 17105355, 22807140, 34210710, 68421420]

約数ペア:

[(1, 68421420), (2, 34210710), (3, 22807140), (4, 17105355), (5, 13684284), (6, 11403570), (9, 7602380), (10, 6842142), (12, 5701785), (15, 4561428), (18, 3801190), (20, 3421071), (30, 2280714), (36, 1900595), (45, 1520476), (60, 1140357), (89, 768780), (90, 760238), (178, 384390), (180, 380119), (267, 256260), (356, 192195), (445, 153756), (534, 128130), (801, 85420), (890, 76878), (1068, 64065), (1335, 51252), (1602, 42710), (1780, 38439), (2670, 25626), (3204, 21355), (4005, 17084), (4271, 16020), (5340, 12813), (8010, 8542)]