259338560

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2011}}^1$

素因数の和:2072

約数の個数: 112

約数和(自身を含む): 686848512

約数和(自身を除く): 427509952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 806, 832, 992, 1040, 1240, 1612, 1984, 2011, 2015, 2080, 2480, 3224, 4022, 4030, 4160, 4960, 6448, 8044, 8060, 9920, 10055, 12896, 16088, 16120, 20110, 25792, 26143, 32176, 32240, 40220, 52286, 62341, 64352, 64480, 80440, 104572, 124682, 128704, 128960, 130715, 160880, 209144, 249364, 261430, 311705, 321760, 418288, 498728, 522860, 623410, 643520, 810433, 836576, 997456, 1045720, 1246820, 1620866, 1673152, 1994912, 2091440, 2493640, 3241732, 3989824, 4052165, 4182880, 4987280, 6483464, 8104330, 8365760, 9974560, 12966928, 16208660, 19949120, 25933856, 32417320, 51867712, 64834640, 129669280, 259338560]

約数ペア:

[(1, 259338560), (2, 129669280), (4, 64834640), (5, 51867712), (8, 32417320), (10, 25933856), (13, 19949120), (16, 16208660), (20, 12966928), (26, 9974560), (31, 8365760), (32, 8104330), (40, 6483464), (52, 4987280), (62, 4182880), (64, 4052165), (65, 3989824), (80, 3241732), (104, 2493640), (124, 2091440), (130, 1994912), (155, 1673152), (160, 1620866), (208, 1246820), (248, 1045720), (260, 997456), (310, 836576), (320, 810433), (403, 643520), (416, 623410), (496, 522860), (520, 498728), (620, 418288), (806, 321760), (832, 311705), (992, 261430), (1040, 249364), (1240, 209144), (1612, 160880), (1984, 130715), (2011, 128960), (2015, 128704), (2080, 124682), (2480, 104572), (3224, 80440), (4022, 64480), (4030, 64352), (4160, 62341), (4960, 52286), (6448, 40220), (8044, 32240), (8060, 32176), (9920, 26143), (10055, 25792), (12896, 20110), (16088, 16120)]