1805440

素因数分解:

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

素因数の和:70

約数の個数: 128

約数和(自身を含む): 5483520

約数和(自身を除く): 3678080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 64, 65, 70, 80, 91, 104, 112, 124, 128, 130, 140, 155, 160, 182, 208, 217, 224, 248, 260, 280, 310, 320, 364, 403, 416, 434, 448, 455, 496, 520, 560, 620, 640, 728, 806, 832, 868, 896, 910, 992, 1040, 1085, 1120, 1240, 1456, 1612, 1664, 1736, 1820, 1984, 2015, 2080, 2170, 2240, 2480, 2821, 2912, 3224, 3472, 3640, 3968, 4030, 4160, 4340, 4480, 4960, 5642, 5824, 6448, 6944, 7280, 8060, 8320, 8680, 9920, 11284, 11648, 12896, 13888, 14105, 14560, 16120, 17360, 19840, 22568, 25792, 27776, 28210, 29120, 32240, 34720, 45136, 51584, 56420, 58240, 64480, 69440, 90272, 112840, 128960, 138880, 180544, 225680, 257920, 361088, 451360, 902720, 1805440]

約数ペア:

[(1, 1805440), (2, 902720), (4, 451360), (5, 361088), (7, 257920), (8, 225680), (10, 180544), (13, 138880), (14, 128960), (16, 112840), (20, 90272), (26, 69440), (28, 64480), (31, 58240), (32, 56420), (35, 51584), (40, 45136), (52, 34720), (56, 32240), (62, 29120), (64, 28210), (65, 27776), (70, 25792), (80, 22568), (91, 19840), (104, 17360), (112, 16120), (124, 14560), (128, 14105), (130, 13888), (140, 12896), (155, 11648), (160, 11284), (182, 9920), (208, 8680), (217, 8320), (224, 8060), (248, 7280), (260, 6944), (280, 6448), (310, 5824), (320, 5642), (364, 4960), (403, 4480), (416, 4340), (434, 4160), (448, 4030), (455, 3968), (496, 3640), (520, 3472), (560, 3224), (620, 2912), (640, 2821), (728, 2480), (806, 2240), (832, 2170), (868, 2080), (896, 2015), (910, 1984), (992, 1820), (1040, 1736), (1085, 1664), (1120, 1612), (1240, 1456)]