398835640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3643}}^1$

素因数の和:3701

約数の個数: 128

約数和(自身を含む): 1133429760

約数和(自身を除く): 734594120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 85, 92, 115, 119, 136, 140, 161, 170, 184, 230, 238, 280, 322, 340, 391, 460, 476, 595, 644, 680, 782, 805, 920, 952, 1190, 1288, 1564, 1610, 1955, 2380, 2737, 3128, 3220, 3643, 3910, 4760, 5474, 6440, 7286, 7820, 10948, 13685, 14572, 15640, 18215, 21896, 25501, 27370, 29144, 36430, 51002, 54740, 61931, 72860, 83789, 102004, 109480, 123862, 127505, 145720, 167578, 204008, 247724, 255010, 309655, 335156, 418945, 433517, 495448, 510020, 586523, 619310, 670312, 837890, 867034, 1020040, 1173046, 1238620, 1424413, 1675780, 1734068, 2167585, 2346092, 2477240, 2848826, 2932615, 3351560, 3468136, 4335170, 4692184, 5697652, 5865230, 7122065, 8670340, 9970891, 11395304, 11730460, 14244130, 17340680, 19941782, 23460920, 28488260, 39883564, 49854455, 56976520, 79767128, 99708910, 199417820, 398835640]

約数ペア:

[(1, 398835640), (2, 199417820), (4, 99708910), (5, 79767128), (7, 56976520), (8, 49854455), (10, 39883564), (14, 28488260), (17, 23460920), (20, 19941782), (23, 17340680), (28, 14244130), (34, 11730460), (35, 11395304), (40, 9970891), (46, 8670340), (56, 7122065), (68, 5865230), (70, 5697652), (85, 4692184), (92, 4335170), (115, 3468136), (119, 3351560), (136, 2932615), (140, 2848826), (161, 2477240), (170, 2346092), (184, 2167585), (230, 1734068), (238, 1675780), (280, 1424413), (322, 1238620), (340, 1173046), (391, 1020040), (460, 867034), (476, 837890), (595, 670312), (644, 619310), (680, 586523), (782, 510020), (805, 495448), (920, 433517), (952, 418945), (1190, 335156), (1288, 309655), (1564, 255010), (1610, 247724), (1955, 204008), (2380, 167578), (2737, 145720), (3128, 127505), (3220, 123862), (3643, 109480), (3910, 102004), (4760, 83789), (5474, 72860), (6440, 61931), (7286, 54740), (7820, 51002), (10948, 36430), (13685, 29144), (14572, 27370), (15640, 25501), (18215, 21896)]