20163457240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{5279}}^1$

素因数の和:5485

約数の個数: 128

約数和(自身を含む): 49576665600

約数和(自身を除く): 29413208360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 137, 164, 170, 205, 274, 328, 340, 410, 548, 680, 685, 697, 820, 1096, 1370, 1394, 1640, 2329, 2740, 2788, 3485, 4658, 5279, 5480, 5576, 5617, 6970, 9316, 10558, 11234, 11645, 13940, 18632, 21116, 22468, 23290, 26395, 27880, 28085, 42232, 44936, 46580, 52790, 56170, 89743, 93160, 95489, 105580, 112340, 179486, 190978, 211160, 216439, 224680, 358972, 381956, 432878, 448715, 477445, 717944, 723223, 763912, 865756, 897430, 954890, 1082195, 1446446, 1731512, 1794860, 1909780, 2164390, 2892892, 3589720, 3616115, 3679463, 3819560, 4328780, 5785784, 7232230, 7358926, 8657560, 12294791, 14464460, 14717852, 18397315, 24589582, 28928920, 29435704, 29652143, 36794630, 49179164, 59304286, 61473955, 73589260, 98358328, 118608572, 122947910, 147178520, 148260715, 237217144, 245895820, 296521430, 491791640, 504086431, 593042860, 1008172862, 1186085720, 2016345724, 2520432155, 4032691448, 5040864310, 10081728620, 20163457240]

約数ペア:

[(1, 20163457240), (2, 10081728620), (4, 5040864310), (5, 4032691448), (8, 2520432155), (10, 2016345724), (17, 1186085720), (20, 1008172862), (34, 593042860), (40, 504086431), (41, 491791640), (68, 296521430), (82, 245895820), (85, 237217144), (136, 148260715), (137, 147178520), (164, 122947910), (170, 118608572), (205, 98358328), (274, 73589260), (328, 61473955), (340, 59304286), (410, 49179164), (548, 36794630), (680, 29652143), (685, 29435704), (697, 28928920), (820, 24589582), (1096, 18397315), (1370, 14717852), (1394, 14464460), (1640, 12294791), (2329, 8657560), (2740, 7358926), (2788, 7232230), (3485, 5785784), (4658, 4328780), (5279, 3819560), (5480, 3679463), (5576, 3616115), (5617, 3589720), (6970, 2892892), (9316, 2164390), (10558, 1909780), (11234, 1794860), (11645, 1731512), (13940, 1446446), (18632, 1082195), (21116, 954890), (22468, 897430), (23290, 865756), (26395, 763912), (27880, 723223), (28085, 717944), (42232, 477445), (44936, 448715), (46580, 432878), (52790, 381956), (56170, 358972), (89743, 224680), (93160, 216439), (95489, 211160), (105580, 190978), (112340, 179486)]