644278320

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{42611}}^1$

素因数の和:42640

約数の個数: 160

約数和(自身を含む): 2536266240

約数和(自身を除く): 1891987920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 42611, 85222, 127833, 170444, 213055, 255666, 298277, 340888, 383499, 426110, 511332, 596554, 639165, 681776, 766998, 852220, 894831, 1022664, 1150497, 1193108, 1278330, 1491385, 1533996, 1704440, 1789662, 1917495, 2045328, 2300994, 2386216, 2556660, 2684493, 2982770, 3067992, 3408880, 3579324, 3834990, 4474155, 4601988, 4772432, 5113320, 5368986, 5752485, 5965540, 6135984, 7158648, 7669980, 8053479, 8948310, 9203976, 10226640, 10737972, 11504970, 11931080, 13422465, 14317296, 15339960, 16106958, 17896620, 18407952, 21475944, 23009940, 23862160, 26844930, 30679920, 32213916, 35793240, 40267395, 42951888, 46019880, 53689860, 64427832, 71586480, 80534790, 92039760, 107379720, 128855664, 161069580, 214759440, 322139160, 644278320]

約数ペア:

[(1, 644278320), (2, 322139160), (3, 214759440), (4, 161069580), (5, 128855664), (6, 107379720), (7, 92039760), (8, 80534790), (9, 71586480), (10, 64427832), (12, 53689860), (14, 46019880), (15, 42951888), (16, 40267395), (18, 35793240), (20, 32213916), (21, 30679920), (24, 26844930), (27, 23862160), (28, 23009940), (30, 21475944), (35, 18407952), (36, 17896620), (40, 16106958), (42, 15339960), (45, 14317296), (48, 13422465), (54, 11931080), (56, 11504970), (60, 10737972), (63, 10226640), (70, 9203976), (72, 8948310), (80, 8053479), (84, 7669980), (90, 7158648), (105, 6135984), (108, 5965540), (112, 5752485), (120, 5368986), (126, 5113320), (135, 4772432), (140, 4601988), (144, 4474155), (168, 3834990), (180, 3579324), (189, 3408880), (210, 3067992), (216, 2982770), (240, 2684493), (252, 2556660), (270, 2386216), (280, 2300994), (315, 2045328), (336, 1917495), (360, 1789662), (378, 1704440), (420, 1533996), (432, 1491385), (504, 1278330), (540, 1193108), (560, 1150497), (630, 1022664), (720, 894831), (756, 852220), (840, 766998), (945, 681776), (1008, 639165), (1080, 596554), (1260, 511332), (1512, 426110), (1680, 383499), (1890, 340888), (2160, 298277), (2520, 255666), (3024, 213055), (3780, 170444), (5040, 127833), (7560, 85222), (15120, 42611)]