20805551210

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1\times {\mathrm{1621}}^1$

素因数の和:2139

約数の個数: 64

約数和(自身を含む): 38903786784

約数和(自身を除く): 18098235574

約数列:

[1, 2, 5, 10, 53, 61, 106, 122, 265, 305, 397, 530, 610, 794, 1621, 1985, 3233, 3242, 3970, 6466, 8105, 16165, 16210, 21041, 24217, 32330, 42082, 48434, 85913, 98881, 105205, 121085, 171826, 197762, 210410, 242170, 429565, 494405, 643537, 859130, 988810, 1283501, 1287074, 2567002, 3217685, 5240693, 6417505, 6435370, 10481386, 12835010, 26203465, 34107461, 39255757, 52406930, 68214922, 78511514, 170537305, 196278785, 341074610, 392557570, 2080555121, 4161110242, 10402775605, 20805551210]

約数ペア:

[(1, 20805551210), (2, 10402775605), (5, 4161110242), (10, 2080555121), (53, 392557570), (61, 341074610), (106, 196278785), (122, 170537305), (265, 78511514), (305, 68214922), (397, 52406930), (530, 39255757), (610, 34107461), (794, 26203465), (1621, 12835010), (1985, 10481386), (3233, 6435370), (3242, 6417505), (3970, 5240693), (6466, 3217685), (8105, 2567002), (16165, 1287074), (16210, 1283501), (21041, 988810), (24217, 859130), (32330, 643537), (42082, 494405), (48434, 429565), (85913, 242170), (98881, 210410), (105205, 197762), (121085, 171826)]