218301720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19991}}^1$

素因数の和:20025

約数の個数: 128

約数和(自身を含む): 806077440

約数和(自身を除く): 587775720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 19991, 39982, 59973, 79964, 99955, 119946, 139937, 159928, 199910, 239892, 259883, 279874, 299865, 399820, 419811, 479784, 519766, 559748, 599730, 699685, 779649, 799640, 839622, 1039532, 1119496, 1199460, 1299415, 1399370, 1559298, 1679244, 1819181, 2079064, 2099055, 2398920, 2598830, 2798740, 3118596, 3358488, 3638362, 3898245, 4198110, 5197660, 5457543, 5597480, 6237192, 7276724, 7796490, 8396220, 9095905, 10395320, 10915086, 14553448, 15592980, 16792440, 18191810, 21830172, 27287715, 31185960, 36383620, 43660344, 54575430, 72767240, 109150860, 218301720]

約数ペア:

[(1, 218301720), (2, 109150860), (3, 72767240), (4, 54575430), (5, 43660344), (6, 36383620), (7, 31185960), (8, 27287715), (10, 21830172), (12, 18191810), (13, 16792440), (14, 15592980), (15, 14553448), (20, 10915086), (21, 10395320), (24, 9095905), (26, 8396220), (28, 7796490), (30, 7276724), (35, 6237192), (39, 5597480), (40, 5457543), (42, 5197660), (52, 4198110), (56, 3898245), (60, 3638362), (65, 3358488), (70, 3118596), (78, 2798740), (84, 2598830), (91, 2398920), (104, 2099055), (105, 2079064), (120, 1819181), (130, 1679244), (140, 1559298), (156, 1399370), (168, 1299415), (182, 1199460), (195, 1119496), (210, 1039532), (260, 839622), (273, 799640), (280, 779649), (312, 699685), (364, 599730), (390, 559748), (420, 519766), (455, 479784), (520, 419811), (546, 399820), (728, 299865), (780, 279874), (840, 259883), (910, 239892), (1092, 199910), (1365, 159928), (1560, 139937), (1820, 119946), (2184, 99955), (2730, 79964), (3640, 59973), (5460, 39982), (10920, 19991)]