257710440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^2$

素因数の和:204

約数の個数: 192

約数和(自身を含む): 871395840

約数和(自身を除く): 613685400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 73, 78, 93, 104, 120, 124, 130, 146, 155, 156, 186, 195, 219, 248, 260, 292, 310, 312, 365, 372, 390, 403, 438, 465, 520, 584, 620, 730, 744, 780, 806, 876, 930, 949, 1095, 1209, 1240, 1460, 1560, 1612, 1752, 1860, 1898, 2015, 2190, 2263, 2418, 2847, 2920, 3224, 3720, 3796, 4030, 4380, 4526, 4745, 4836, 5329, 5694, 6045, 6789, 7592, 8060, 8760, 9052, 9490, 9672, 10658, 11315, 11388, 12090, 13578, 14235, 15987, 16120, 18104, 18980, 21316, 22630, 22776, 24180, 26645, 27156, 28470, 29419, 31974, 33945, 37960, 42632, 45260, 48360, 53290, 54312, 56940, 58838, 63948, 67890, 69277, 79935, 88257, 90520, 106580, 113880, 117676, 127896, 135780, 138554, 147095, 159870, 165199, 176514, 207831, 213160, 235352, 271560, 277108, 294190, 319740, 330398, 346385, 353028, 415662, 441285, 495597, 554216, 588380, 639480, 660796, 692770, 706056, 825995, 831324, 882570, 991194, 1039155, 1176760, 1321592, 1385540, 1651990, 1662648, 1765140, 1982388, 2078310, 2147587, 2477985, 2771080, 3303980, 3530280, 3964776, 4156620, 4295174, 4955970, 6442761, 6607960, 8313240, 8590348, 9911940, 10737935, 12885522, 17180696, 19823880, 21475870, 25771044, 32213805, 42951740, 51542088, 64427610, 85903480, 128855220, 257710440]

約数ペア:

[(1, 257710440), (2, 128855220), (3, 85903480), (4, 64427610), (5, 51542088), (6, 42951740), (8, 32213805), (10, 25771044), (12, 21475870), (13, 19823880), (15, 17180696), (20, 12885522), (24, 10737935), (26, 9911940), (30, 8590348), (31, 8313240), (39, 6607960), (40, 6442761), (52, 4955970), (60, 4295174), (62, 4156620), (65, 3964776), (73, 3530280), (78, 3303980), (93, 2771080), (104, 2477985), (120, 2147587), (124, 2078310), (130, 1982388), (146, 1765140), (155, 1662648), (156, 1651990), (186, 1385540), (195, 1321592), (219, 1176760), (248, 1039155), (260, 991194), (292, 882570), (310, 831324), (312, 825995), (365, 706056), (372, 692770), (390, 660796), (403, 639480), (438, 588380), (465, 554216), (520, 495597), (584, 441285), (620, 415662), (730, 353028), (744, 346385), (780, 330398), (806, 319740), (876, 294190), (930, 277108), (949, 271560), (1095, 235352), (1209, 213160), (1240, 207831), (1460, 176514), (1560, 165199), (1612, 159870), (1752, 147095), (1860, 138554), (1898, 135780), (2015, 127896), (2190, 117676), (2263, 113880), (2418, 106580), (2847, 90520), (2920, 88257), (3224, 79935), (3720, 69277), (3796, 67890), (4030, 63948), (4380, 58838), (4526, 56940), (4745, 54312), (4836, 53290), (5329, 48360), (5694, 45260), (6045, 42632), (6789, 37960), (7592, 33945), (8060, 31974), (8760, 29419), (9052, 28470), (9490, 27156), (9672, 26645), (10658, 24180), (11315, 22776), (11388, 22630), (12090, 21316), (13578, 18980), (14235, 18104), (15987, 16120)]