127966280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 325987200

約数和(自身を除く): 198020920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 59, 65, 86, 97, 104, 118, 130, 172, 194, 215, 236, 260, 295, 344, 388, 430, 472, 485, 520, 559, 590, 767, 776, 860, 970, 1118, 1180, 1261, 1534, 1720, 1940, 2236, 2360, 2522, 2537, 2795, 3068, 3835, 3880, 4171, 4472, 5044, 5074, 5590, 5723, 6136, 6305, 7670, 8342, 10088, 10148, 11180, 11446, 12610, 12685, 15340, 16684, 20296, 20855, 22360, 22892, 25220, 25370, 28615, 30680, 32981, 33368, 41710, 45784, 50440, 50740, 54223, 57230, 65962, 74399, 83420, 101480, 108446, 114460, 131924, 148798, 164905, 166840, 216892, 228920, 246089, 263848, 271115, 297596, 329810, 371995, 433784, 492178, 542230, 595192, 659620, 743990, 984356, 1084460, 1230445, 1319240, 1487980, 1968712, 2168920, 2460890, 2975960, 3199157, 4921780, 6398314, 9843560, 12796628, 15995785, 25593256, 31991570, 63983140, 127966280]

約数ペア:

[(1, 127966280), (2, 63983140), (4, 31991570), (5, 25593256), (8, 15995785), (10, 12796628), (13, 9843560), (20, 6398314), (26, 4921780), (40, 3199157), (43, 2975960), (52, 2460890), (59, 2168920), (65, 1968712), (86, 1487980), (97, 1319240), (104, 1230445), (118, 1084460), (130, 984356), (172, 743990), (194, 659620), (215, 595192), (236, 542230), (260, 492178), (295, 433784), (344, 371995), (388, 329810), (430, 297596), (472, 271115), (485, 263848), (520, 246089), (559, 228920), (590, 216892), (767, 166840), (776, 164905), (860, 148798), (970, 131924), (1118, 114460), (1180, 108446), (1261, 101480), (1534, 83420), (1720, 74399), (1940, 65962), (2236, 57230), (2360, 54223), (2522, 50740), (2537, 50440), (2795, 45784), (3068, 41710), (3835, 33368), (3880, 32981), (4171, 30680), (4472, 28615), (5044, 25370), (5074, 25220), (5590, 22892), (5723, 22360), (6136, 20855), (6305, 20296), (7670, 16684), (8342, 15340), (10088, 12685), (10148, 12610), (11180, 11446)]