25703440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:189

約数の個数: 120

約数和(自身を含む): 71245440

約数和(自身を除く): 45542000

約数列:

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

約数ペア:

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