20931296360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{26189}}^1$

素因数の和:26295

約数の個数: 128

約数和(自身を含む): 53459028000

約数和(自身を除く): 32527731640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 53, 58, 65, 104, 106, 116, 130, 145, 212, 232, 260, 265, 290, 377, 424, 520, 530, 580, 689, 754, 1060, 1160, 1378, 1508, 1537, 1885, 2120, 2756, 3016, 3074, 3445, 3770, 5512, 6148, 6890, 7540, 7685, 12296, 13780, 15080, 15370, 19981, 26189, 27560, 30740, 39962, 52378, 61480, 79924, 99905, 104756, 130945, 159848, 199810, 209512, 261890, 340457, 399620, 523780, 680914, 759481, 799240, 1047560, 1361828, 1388017, 1518962, 1702285, 2723656, 2776034, 3037924, 3404570, 3797405, 5552068, 6075848, 6809140, 6940085, 7594810, 9873253, 11104136, 13618280, 13880170, 15189620, 18044221, 19746506, 27760340, 30379240, 36088442, 39493012, 40252493, 49366265, 55520680, 72176884, 78986024, 80504986, 90221105, 98732530, 144353768, 161009972, 180442210, 197465060, 201262465, 322019944, 360884420, 394930120, 402524930, 523282409, 721768840, 805049860, 1046564818, 1610099720, 2093129636, 2616412045, 4186259272, 5232824090, 10465648180, 20931296360]

約数ペア:

[(1, 20931296360), (2, 10465648180), (4, 5232824090), (5, 4186259272), (8, 2616412045), (10, 2093129636), (13, 1610099720), (20, 1046564818), (26, 805049860), (29, 721768840), (40, 523282409), (52, 402524930), (53, 394930120), (58, 360884420), (65, 322019944), (104, 201262465), (106, 197465060), (116, 180442210), (130, 161009972), (145, 144353768), (212, 98732530), (232, 90221105), (260, 80504986), (265, 78986024), (290, 72176884), (377, 55520680), (424, 49366265), (520, 40252493), (530, 39493012), (580, 36088442), (689, 30379240), (754, 27760340), (1060, 19746506), (1160, 18044221), (1378, 15189620), (1508, 13880170), (1537, 13618280), (1885, 11104136), (2120, 9873253), (2756, 7594810), (3016, 6940085), (3074, 6809140), (3445, 6075848), (3770, 5552068), (5512, 3797405), (6148, 3404570), (6890, 3037924), (7540, 2776034), (7685, 2723656), (12296, 1702285), (13780, 1518962), (15080, 1388017), (15370, 1361828), (19981, 1047560), (26189, 799240), (27560, 759481), (30740, 680914), (39962, 523780), (52378, 399620), (61480, 340457), (79924, 261890), (99905, 209512), (104756, 199810), (130945, 159848)]