51406880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 144

約数和(自身を含む): 144789120

約数和(自身を除く): 93382240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 79, 80, 83, 98, 112, 140, 158, 160, 166, 196, 224, 245, 280, 316, 332, 392, 395, 415, 490, 553, 560, 581, 632, 664, 784, 790, 830, 980, 1106, 1120, 1162, 1264, 1328, 1568, 1580, 1660, 1960, 2212, 2324, 2528, 2656, 2765, 2905, 3160, 3320, 3871, 3920, 4067, 4424, 4648, 5530, 5810, 6320, 6557, 6640, 7742, 7840, 8134, 8848, 9296, 11060, 11620, 12640, 13114, 13280, 15484, 16268, 17696, 18592, 19355, 20335, 22120, 23240, 26228, 30968, 32536, 32785, 38710, 40670, 44240, 45899, 46480, 52456, 61936, 65072, 65570, 77420, 81340, 88480, 91798, 92960, 104912, 123872, 130144, 131140, 154840, 162680, 183596, 209824, 229495, 262280, 309680, 321293, 325360, 367192, 458990, 524560, 619360, 642586, 650720, 734384, 917980, 1049120, 1285172, 1468768, 1606465, 1835960, 2570344, 3212930, 3671920, 5140688, 6425860, 7343840, 10281376, 12851720, 25703440, 51406880]

約数ペア:

[(1, 51406880), (2, 25703440), (4, 12851720), (5, 10281376), (7, 7343840), (8, 6425860), (10, 5140688), (14, 3671920), (16, 3212930), (20, 2570344), (28, 1835960), (32, 1606465), (35, 1468768), (40, 1285172), (49, 1049120), (56, 917980), (70, 734384), (79, 650720), (80, 642586), (83, 619360), (98, 524560), (112, 458990), (140, 367192), (158, 325360), (160, 321293), (166, 309680), (196, 262280), (224, 229495), (245, 209824), (280, 183596), (316, 162680), (332, 154840), (392, 131140), (395, 130144), (415, 123872), (490, 104912), (553, 92960), (560, 91798), (581, 88480), (632, 81340), (664, 77420), (784, 65570), (790, 65072), (830, 61936), (980, 52456), (1106, 46480), (1120, 45899), (1162, 44240), (1264, 40670), (1328, 38710), (1568, 32785), (1580, 32536), (1660, 30968), (1960, 26228), (2212, 23240), (2324, 22120), (2528, 20335), (2656, 19355), (2765, 18592), (2905, 17696), (3160, 16268), (3320, 15484), (3871, 13280), (3920, 13114), (4067, 12640), (4424, 11620), (4648, 11060), (5530, 9296), (5810, 8848), (6320, 8134), (6557, 7840), (6640, 7742)]