217027720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{547}}^1$

素因数の和:687

約数の個数: 128

約数和(自身を含む): 607622400

約数和(自身を除く): 390594680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 109, 130, 140, 182, 218, 260, 280, 364, 436, 455, 520, 545, 547, 728, 763, 872, 910, 1090, 1094, 1417, 1526, 1820, 2180, 2188, 2735, 2834, 3052, 3640, 3815, 3829, 4360, 4376, 5470, 5668, 6104, 7085, 7111, 7630, 7658, 9919, 10940, 11336, 14170, 14222, 15260, 15316, 19145, 19838, 21880, 28340, 28444, 30520, 30632, 35555, 38290, 39676, 49595, 49777, 56680, 56888, 59623, 71110, 76580, 79352, 99190, 99554, 119246, 142220, 153160, 198380, 199108, 238492, 248885, 284440, 298115, 396760, 398216, 417361, 476984, 497770, 596230, 775099, 834722, 995540, 1192460, 1550198, 1669444, 1991080, 2086805, 2384920, 3100396, 3338888, 3875495, 4173610, 5425693, 6200792, 7750990, 8347220, 10851386, 15501980, 16694440, 21702772, 27128465, 31003960, 43405544, 54256930, 108513860, 217027720]

約数ペア:

[(1, 217027720), (2, 108513860), (4, 54256930), (5, 43405544), (7, 31003960), (8, 27128465), (10, 21702772), (13, 16694440), (14, 15501980), (20, 10851386), (26, 8347220), (28, 7750990), (35, 6200792), (40, 5425693), (52, 4173610), (56, 3875495), (65, 3338888), (70, 3100396), (91, 2384920), (104, 2086805), (109, 1991080), (130, 1669444), (140, 1550198), (182, 1192460), (218, 995540), (260, 834722), (280, 775099), (364, 596230), (436, 497770), (455, 476984), (520, 417361), (545, 398216), (547, 396760), (728, 298115), (763, 284440), (872, 248885), (910, 238492), (1090, 199108), (1094, 198380), (1417, 153160), (1526, 142220), (1820, 119246), (2180, 99554), (2188, 99190), (2735, 79352), (2834, 76580), (3052, 71110), (3640, 59623), (3815, 56888), (3829, 56680), (4360, 49777), (4376, 49595), (5470, 39676), (5668, 38290), (6104, 35555), (7085, 30632), (7111, 30520), (7630, 28444), (7658, 28340), (9919, 21880), (10940, 19838), (11336, 19145), (14170, 15316), (14222, 15260)]