31283980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17189}}^1$

素因数の和:17218

約数の個数: 48

約数和(自身を含む): 80861760

約数和(自身を除く): 49577780

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 17189, 34378, 68756, 85945, 120323, 171890, 223457, 240646, 343780, 446914, 481292, 601615, 893828, 1117285, 1203230, 1564199, 2234570, 2406460, 3128398, 4469140, 6256796, 7820995, 15641990, 31283980]

約数ペア:

[(1, 31283980), (2, 15641990), (4, 7820995), (5, 6256796), (7, 4469140), (10, 3128398), (13, 2406460), (14, 2234570), (20, 1564199), (26, 1203230), (28, 1117285), (35, 893828), (52, 601615), (65, 481292), (70, 446914), (91, 343780), (130, 240646), (140, 223457), (182, 171890), (260, 120323), (364, 85945), (455, 68756), (910, 34378), (1820, 17189)]