25129420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 54468288

約数和(自身を除く): 29338868

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 151, 157, 212, 265, 302, 314, 530, 604, 628, 755, 785, 1060, 1510, 1570, 3020, 3140, 8003, 8321, 16006, 16642, 23707, 32012, 33284, 40015, 41605, 47414, 80030, 83210, 94828, 118535, 160060, 166420, 237070, 474140, 1256471, 2512942, 5025884, 6282355, 12564710, 25129420]

約数ペア:

[(1, 25129420), (2, 12564710), (4, 6282355), (5, 5025884), (10, 2512942), (20, 1256471), (53, 474140), (106, 237070), (151, 166420), (157, 160060), (212, 118535), (265, 94828), (302, 83210), (314, 80030), (530, 47414), (604, 41605), (628, 40015), (755, 33284), (785, 32012), (1060, 23707), (1510, 16642), (1570, 16006), (3020, 8321), (3140, 8003)]