316875520

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 829291680

約数和(自身を除く): 512416160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 137, 139, 160, 208, 256, 260, 274, 278, 320, 416, 520, 548, 556, 640, 685, 695, 832, 1040, 1096, 1112, 1280, 1370, 1390, 1664, 1781, 1807, 2080, 2192, 2224, 2740, 2780, 3328, 3562, 3614, 4160, 4384, 4448, 5480, 5560, 7124, 7228, 8320, 8768, 8896, 8905, 9035, 10960, 11120, 14248, 14456, 16640, 17536, 17792, 17810, 18070, 19043, 21920, 22240, 28496, 28912, 35072, 35584, 35620, 36140, 38086, 43840, 44480, 56992, 57824, 71240, 72280, 76172, 87680, 88960, 95215, 113984, 115648, 142480, 144560, 152344, 175360, 177920, 190430, 227968, 231296, 247559, 284960, 289120, 304688, 380860, 455936, 462592, 495118, 569920, 578240, 609376, 761720, 990236, 1139840, 1156480, 1218752, 1237795, 1523440, 1980472, 2279680, 2312960, 2437504, 2475590, 3046880, 3960944, 4875008, 4951180, 6093760, 7921888, 9902360, 12187520, 15843776, 19804720, 24375040, 31687552, 39609440, 63375104, 79218880, 158437760, 316875520]

約数ペア:

[(1, 316875520), (2, 158437760), (4, 79218880), (5, 63375104), (8, 39609440), (10, 31687552), (13, 24375040), (16, 19804720), (20, 15843776), (26, 12187520), (32, 9902360), (40, 7921888), (52, 6093760), (64, 4951180), (65, 4875008), (80, 3960944), (104, 3046880), (128, 2475590), (130, 2437504), (137, 2312960), (139, 2279680), (160, 1980472), (208, 1523440), (256, 1237795), (260, 1218752), (274, 1156480), (278, 1139840), (320, 990236), (416, 761720), (520, 609376), (548, 578240), (556, 569920), (640, 495118), (685, 462592), (695, 455936), (832, 380860), (1040, 304688), (1096, 289120), (1112, 284960), (1280, 247559), (1370, 231296), (1390, 227968), (1664, 190430), (1781, 177920), (1807, 175360), (2080, 152344), (2192, 144560), (2224, 142480), (2740, 115648), (2780, 113984), (3328, 95215), (3562, 88960), (3614, 87680), (4160, 76172), (4384, 72280), (4448, 71240), (5480, 57824), (5560, 56992), (7124, 44480), (7228, 43840), (8320, 38086), (8768, 36140), (8896, 35620), (8905, 35584), (9035, 35072), (10960, 28912), (11120, 28496), (14248, 22240), (14456, 21920), (16640, 19043), (17536, 18070), (17792, 17810)]