71701760

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 192299520

約数和(自身を除く): 120597760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 139, 155, 160, 208, 248, 256, 260, 278, 310, 320, 403, 416, 496, 520, 556, 620, 640, 695, 806, 832, 992, 1040, 1112, 1240, 1280, 1390, 1612, 1664, 1807, 1984, 2015, 2080, 2224, 2480, 2780, 3224, 3328, 3614, 3968, 4030, 4160, 4309, 4448, 4960, 5560, 6448, 7228, 7936, 8060, 8320, 8618, 8896, 9035, 9920, 11120, 12896, 14456, 16120, 16640, 17236, 17792, 18070, 19840, 21545, 22240, 25792, 28912, 32240, 34472, 35584, 36140, 39680, 43090, 44480, 51584, 56017, 57824, 64480, 68944, 72280, 86180, 88960, 103168, 112034, 115648, 128960, 137888, 144560, 172360, 177920, 224068, 231296, 257920, 275776, 280085, 289120, 344720, 448136, 462592, 515840, 551552, 560170, 578240, 689440, 896272, 1103104, 1120340, 1156480, 1378880, 1792544, 2240680, 2312960, 2757760, 3585088, 4481360, 5515520, 7170176, 8962720, 14340352, 17925440, 35850880, 71701760]

約数ペア:

[(1, 71701760), (2, 35850880), (4, 17925440), (5, 14340352), (8, 8962720), (10, 7170176), (13, 5515520), (16, 4481360), (20, 3585088), (26, 2757760), (31, 2312960), (32, 2240680), (40, 1792544), (52, 1378880), (62, 1156480), (64, 1120340), (65, 1103104), (80, 896272), (104, 689440), (124, 578240), (128, 560170), (130, 551552), (139, 515840), (155, 462592), (160, 448136), (208, 344720), (248, 289120), (256, 280085), (260, 275776), (278, 257920), (310, 231296), (320, 224068), (403, 177920), (416, 172360), (496, 144560), (520, 137888), (556, 128960), (620, 115648), (640, 112034), (695, 103168), (806, 88960), (832, 86180), (992, 72280), (1040, 68944), (1112, 64480), (1240, 57824), (1280, 56017), (1390, 51584), (1612, 44480), (1664, 43090), (1807, 39680), (1984, 36140), (2015, 35584), (2080, 34472), (2224, 32240), (2480, 28912), (2780, 25792), (3224, 22240), (3328, 21545), (3614, 19840), (3968, 18070), (4030, 17792), (4160, 17236), (4309, 16640), (4448, 16120), (4960, 14456), (5560, 12896), (6448, 11120), (7228, 9920), (7936, 9035), (8060, 8896), (8320, 8618)]