202865980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^2\times {\mathrm{157}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 455972832

約数和(自身を除く): 253106852

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 53, 92, 106, 115, 157, 212, 230, 265, 314, 460, 530, 628, 785, 1060, 1219, 1570, 2438, 2809, 3140, 3611, 4876, 5618, 6095, 7222, 8321, 11236, 12190, 14045, 14444, 16642, 18055, 24380, 28090, 33284, 36110, 41605, 56180, 64607, 72220, 83210, 129214, 166420, 191383, 258428, 323035, 382766, 441013, 646070, 765532, 882026, 956915, 1292140, 1764052, 1913830, 2205065, 3827660, 4410130, 8820260, 10143299, 20286598, 40573196, 50716495, 101432990, 202865980]

約数ペア:

[(1, 202865980), (2, 101432990), (4, 50716495), (5, 40573196), (10, 20286598), (20, 10143299), (23, 8820260), (46, 4410130), (53, 3827660), (92, 2205065), (106, 1913830), (115, 1764052), (157, 1292140), (212, 956915), (230, 882026), (265, 765532), (314, 646070), (460, 441013), (530, 382766), (628, 323035), (785, 258428), (1060, 191383), (1219, 166420), (1570, 129214), (2438, 83210), (2809, 72220), (3140, 64607), (3611, 56180), (4876, 41605), (5618, 36110), (6095, 33284), (7222, 28090), (8321, 24380), (11236, 18055), (12190, 16642), (14045, 14444)]