25388140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{839}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 57153600

約数和(自身を除く): 31765460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 839, 890, 1513, 1678, 1780, 3026, 3356, 4195, 6052, 7565, 8390, 14263, 15130, 16780, 28526, 30260, 57052, 71315, 74671, 142630, 149342, 285260, 298684, 373355, 746710, 1269407, 1493420, 2538814, 5077628, 6347035, 12694070, 25388140]

約数ペア:

[(1, 25388140), (2, 12694070), (4, 6347035), (5, 5077628), (10, 2538814), (17, 1493420), (20, 1269407), (34, 746710), (68, 373355), (85, 298684), (89, 285260), (170, 149342), (178, 142630), (340, 74671), (356, 71315), (445, 57052), (839, 30260), (890, 28526), (1513, 16780), (1678, 15130), (1780, 14263), (3026, 8390), (3356, 7565), (4195, 6052)]