168421760

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:716

約数の個数: 128

約数和(自身を含む): 448277760

約数和(自身を除く): 279856000

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, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 653, 806, 832, 992, 1040, 1240, 1306, 1612, 1664, 1984, 2015, 2080, 2480, 2612, 3224, 3265, 3968, 4030, 4160, 4960, 5224, 6448, 6530, 8060, 8320, 8489, 9920, 10448, 12896, 13060, 16120, 16978, 19840, 20243, 20896, 25792, 26120, 32240, 33956, 40486, 41792, 42445, 51584, 52240, 64480, 67912, 80972, 83584, 84890, 101215, 104480, 128960, 135824, 161944, 169780, 202430, 208960, 257920, 263159, 271648, 323888, 339560, 404860, 417920, 526318, 543296, 647776, 679120, 809720, 1052636, 1086592, 1295552, 1315795, 1358240, 1619440, 2105272, 2591104, 2631590, 2716480, 3238880, 4210544, 5263180, 5432960, 6477760, 8421088, 10526360, 12955520, 16842176, 21052720, 33684352, 42105440, 84210880, 168421760]

約数ペア:

[(1, 168421760), (2, 84210880), (4, 42105440), (5, 33684352), (8, 21052720), (10, 16842176), (13, 12955520), (16, 10526360), (20, 8421088), (26, 6477760), (31, 5432960), (32, 5263180), (40, 4210544), (52, 3238880), (62, 2716480), (64, 2631590), (65, 2591104), (80, 2105272), (104, 1619440), (124, 1358240), (128, 1315795), (130, 1295552), (155, 1086592), (160, 1052636), (208, 809720), (248, 679120), (260, 647776), (310, 543296), (320, 526318), (403, 417920), (416, 404860), (496, 339560), (520, 323888), (620, 271648), (640, 263159), (653, 257920), (806, 208960), (832, 202430), (992, 169780), (1040, 161944), (1240, 135824), (1306, 128960), (1612, 104480), (1664, 101215), (1984, 84890), (2015, 83584), (2080, 80972), (2480, 67912), (2612, 64480), (3224, 52240), (3265, 51584), (3968, 42445), (4030, 41792), (4160, 40486), (4960, 33956), (5224, 32240), (6448, 26120), (6530, 25792), (8060, 20896), (8320, 20243), (8489, 19840), (9920, 16978), (10448, 16120), (12896, 13060)]