20187682360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{3557}}^1$

素因数の和:3821

約数の個数: 128

約数和(自身を含む): 49185792000

約数和(自身を除く): 28998109640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 199, 230, 248, 310, 398, 460, 620, 713, 796, 920, 995, 1240, 1426, 1592, 1990, 2852, 3557, 3565, 3980, 4577, 5704, 6169, 7114, 7130, 7960, 9154, 12338, 14228, 14260, 17785, 18308, 22885, 24676, 28456, 28520, 30845, 35570, 36616, 45770, 49352, 61690, 71140, 81811, 91540, 110267, 123380, 141887, 142280, 163622, 183080, 220534, 246760, 283774, 327244, 409055, 441068, 551335, 567548, 654488, 707843, 709435, 818110, 882136, 1102670, 1135096, 1415686, 1418870, 1636220, 2205340, 2536141, 2831372, 2837740, 3272440, 3539215, 4410680, 5072282, 5662744, 5675480, 7078430, 10144564, 12680705, 14156860, 16280389, 20289128, 21943133, 25361410, 28313720, 32560778, 43886266, 50722820, 65121556, 81401945, 87772532, 101445640, 109715665, 130243112, 162803890, 175545064, 219431330, 325607780, 438862660, 504692059, 651215560, 877725320, 1009384118, 2018768236, 2523460295, 4037536472, 5046920590, 10093841180, 20187682360]

約数ペア:

[(1, 20187682360), (2, 10093841180), (4, 5046920590), (5, 4037536472), (8, 2523460295), (10, 2018768236), (20, 1009384118), (23, 877725320), (31, 651215560), (40, 504692059), (46, 438862660), (62, 325607780), (92, 219431330), (115, 175545064), (124, 162803890), (155, 130243112), (184, 109715665), (199, 101445640), (230, 87772532), (248, 81401945), (310, 65121556), (398, 50722820), (460, 43886266), (620, 32560778), (713, 28313720), (796, 25361410), (920, 21943133), (995, 20289128), (1240, 16280389), (1426, 14156860), (1592, 12680705), (1990, 10144564), (2852, 7078430), (3557, 5675480), (3565, 5662744), (3980, 5072282), (4577, 4410680), (5704, 3539215), (6169, 3272440), (7114, 2837740), (7130, 2831372), (7960, 2536141), (9154, 2205340), (12338, 1636220), (14228, 1418870), (14260, 1415686), (17785, 1135096), (18308, 1102670), (22885, 882136), (24676, 818110), (28456, 709435), (28520, 707843), (30845, 654488), (35570, 567548), (36616, 551335), (45770, 441068), (49352, 409055), (61690, 327244), (71140, 283774), (81811, 246760), (91540, 220534), (110267, 183080), (123380, 163622), (141887, 142280)]