25631820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{907}}^1$

素因数の和:1079

約数の個数: 72

約数和(自身を含む): 78331344

約数和(自身を除く): 52699524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 907, 942, 1413, 1570, 1814, 1884, 2355, 2721, 2826, 3140, 3628, 4535, 4710, 5442, 5652, 7065, 8163, 9070, 9420, 10884, 13605, 14130, 16326, 18140, 27210, 28260, 32652, 40815, 54420, 81630, 142399, 163260, 284798, 427197, 569596, 711995, 854394, 1281591, 1423990, 1708788, 2135985, 2563182, 2847980, 4271970, 5126364, 6407955, 8543940, 12815910, 25631820]

約数ペア:

[(1, 25631820), (2, 12815910), (3, 8543940), (4, 6407955), (5, 5126364), (6, 4271970), (9, 2847980), (10, 2563182), (12, 2135985), (15, 1708788), (18, 1423990), (20, 1281591), (30, 854394), (36, 711995), (45, 569596), (60, 427197), (90, 284798), (157, 163260), (180, 142399), (314, 81630), (471, 54420), (628, 40815), (785, 32652), (907, 28260), (942, 27210), (1413, 18140), (1570, 16326), (1814, 14130), (1884, 13605), (2355, 10884), (2721, 9420), (2826, 9070), (3140, 8163), (3628, 7065), (4535, 5652), (4710, 5442)]