279101680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:855

約数の個数: 160

約数和(自身を含む): 787949568

約数和(自身を除く): 508847888

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 80, 88, 104, 110, 124, 130, 143, 155, 176, 208, 220, 248, 260, 286, 310, 341, 403, 440, 496, 520, 572, 620, 682, 715, 787, 806, 880, 1040, 1144, 1240, 1364, 1430, 1574, 1612, 1705, 2015, 2288, 2480, 2728, 2860, 3148, 3224, 3410, 3935, 4030, 4433, 5456, 5720, 6296, 6448, 6820, 7870, 8060, 8657, 8866, 10231, 11440, 12592, 13640, 15740, 16120, 17314, 17732, 20462, 22165, 24397, 27280, 31480, 32240, 34628, 35464, 40924, 43285, 44330, 48794, 51155, 62960, 69256, 70928, 81848, 86570, 88660, 97588, 102310, 112541, 121985, 138512, 163696, 173140, 177320, 195176, 204620, 225082, 243970, 268367, 317161, 346280, 354640, 390352, 409240, 450164, 487940, 536734, 562705, 634322, 692560, 818480, 900328, 975880, 1073468, 1125410, 1268644, 1341835, 1585805, 1800656, 1951760, 2146936, 2250820, 2537288, 2683670, 3171610, 3488771, 4293872, 4501640, 5074576, 5367340, 6343220, 6977542, 9003280, 10734680, 12686440, 13955084, 17443855, 21469360, 25372880, 27910168, 34887710, 55820336, 69775420, 139550840, 279101680]

約数ペア:

[(1, 279101680), (2, 139550840), (4, 69775420), (5, 55820336), (8, 34887710), (10, 27910168), (11, 25372880), (13, 21469360), (16, 17443855), (20, 13955084), (22, 12686440), (26, 10734680), (31, 9003280), (40, 6977542), (44, 6343220), (52, 5367340), (55, 5074576), (62, 4501640), (65, 4293872), (80, 3488771), (88, 3171610), (104, 2683670), (110, 2537288), (124, 2250820), (130, 2146936), (143, 1951760), (155, 1800656), (176, 1585805), (208, 1341835), (220, 1268644), (248, 1125410), (260, 1073468), (286, 975880), (310, 900328), (341, 818480), (403, 692560), (440, 634322), (496, 562705), (520, 536734), (572, 487940), (620, 450164), (682, 409240), (715, 390352), (787, 354640), (806, 346280), (880, 317161), (1040, 268367), (1144, 243970), (1240, 225082), (1364, 204620), (1430, 195176), (1574, 177320), (1612, 173140), (1705, 163696), (2015, 138512), (2288, 121985), (2480, 112541), (2728, 102310), (2860, 97588), (3148, 88660), (3224, 86570), (3410, 81848), (3935, 70928), (4030, 69256), (4433, 62960), (5456, 51155), (5720, 48794), (6296, 44330), (6448, 43285), (6820, 40924), (7870, 35464), (8060, 34628), (8657, 32240), (8866, 31480), (10231, 27280), (11440, 24397), (12592, 22165), (13640, 20462), (15740, 17732), (16120, 17314)]