389699120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:283

約数の個数: 160

約数和(自身を含む): 1015649280

約数和(自身を除く): 625950160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 38, 40, 46, 71, 76, 80, 92, 95, 115, 142, 152, 157, 184, 190, 230, 284, 304, 314, 355, 368, 380, 437, 460, 568, 628, 710, 760, 785, 874, 920, 1136, 1256, 1349, 1420, 1520, 1570, 1633, 1748, 1840, 2185, 2512, 2698, 2840, 2983, 3140, 3266, 3496, 3611, 4370, 5396, 5680, 5966, 6280, 6532, 6745, 6992, 7222, 8165, 8740, 10792, 11147, 11932, 12560, 13064, 13490, 14444, 14915, 16330, 17480, 18055, 21584, 22294, 23864, 26128, 26980, 28888, 29830, 31027, 32660, 34960, 36110, 44588, 47728, 53960, 55735, 57776, 59660, 62054, 65320, 68609, 72220, 89176, 107920, 111470, 119320, 124108, 130640, 137218, 144440, 155135, 178352, 211793, 222940, 238640, 248216, 256381, 274436, 288880, 310270, 343045, 423586, 445880, 496432, 512762, 548872, 620540, 686090, 847172, 891760, 1025524, 1058965, 1097744, 1241080, 1281905, 1372180, 1694344, 2051048, 2117930, 2482160, 2563810, 2744360, 3388688, 4102096, 4235860, 4871239, 5127620, 5488720, 8471720, 9742478, 10255240, 16943440, 19484956, 20510480, 24356195, 38969912, 48712390, 77939824, 97424780, 194849560, 389699120]

約数ペア:

[(1, 389699120), (2, 194849560), (4, 97424780), (5, 77939824), (8, 48712390), (10, 38969912), (16, 24356195), (19, 20510480), (20, 19484956), (23, 16943440), (38, 10255240), (40, 9742478), (46, 8471720), (71, 5488720), (76, 5127620), (80, 4871239), (92, 4235860), (95, 4102096), (115, 3388688), (142, 2744360), (152, 2563810), (157, 2482160), (184, 2117930), (190, 2051048), (230, 1694344), (284, 1372180), (304, 1281905), (314, 1241080), (355, 1097744), (368, 1058965), (380, 1025524), (437, 891760), (460, 847172), (568, 686090), (628, 620540), (710, 548872), (760, 512762), (785, 496432), (874, 445880), (920, 423586), (1136, 343045), (1256, 310270), (1349, 288880), (1420, 274436), (1520, 256381), (1570, 248216), (1633, 238640), (1748, 222940), (1840, 211793), (2185, 178352), (2512, 155135), (2698, 144440), (2840, 137218), (2983, 130640), (3140, 124108), (3266, 119320), (3496, 111470), (3611, 107920), (4370, 89176), (5396, 72220), (5680, 68609), (5966, 65320), (6280, 62054), (6532, 59660), (6745, 57776), (6992, 55735), (7222, 53960), (8165, 47728), (8740, 44588), (10792, 36110), (11147, 34960), (11932, 32660), (12560, 31027), (13064, 29830), (13490, 28888), (14444, 26980), (14915, 26128), (16330, 23864), (17480, 22294), (18055, 21584)]