278743920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12763}}^1$

素因数の和:12799

約数の個数: 160

約数和(自身を含む): 1063598592

約数和(自身を除く): 784854672

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 1040, 1092, 1365, 1456, 1560, 1680, 1820, 2184, 2730, 3120, 3640, 4368, 5460, 7280, 10920, 12763, 21840, 25526, 38289, 51052, 63815, 76578, 89341, 102104, 127630, 153156, 165919, 178682, 191445, 204208, 255260, 268023, 306312, 331838, 357364, 382890, 446705, 497757, 510520, 536046, 612624, 663676, 714728, 765780, 829595, 893410, 995514, 1021040, 1072092, 1161433, 1327352, 1340115, 1429456, 1531560, 1659190, 1786820, 1991028, 2144184, 2322866, 2488785, 2654704, 2680230, 3063120, 3318380, 3484299, 3573640, 3982056, 4288368, 4645732, 4977570, 5360460, 5807165, 6636760, 6968598, 7147280, 7964112, 9291464, 9955140, 10720920, 11614330, 13273520, 13937196, 17421495, 18582928, 19910280, 21441840, 23228660, 27874392, 34842990, 39820560, 46457320, 55748784, 69685980, 92914640, 139371960, 278743920]

約数ペア:

[(1, 278743920), (2, 139371960), (3, 92914640), (4, 69685980), (5, 55748784), (6, 46457320), (7, 39820560), (8, 34842990), (10, 27874392), (12, 23228660), (13, 21441840), (14, 19910280), (15, 18582928), (16, 17421495), (20, 13937196), (21, 13273520), (24, 11614330), (26, 10720920), (28, 9955140), (30, 9291464), (35, 7964112), (39, 7147280), (40, 6968598), (42, 6636760), (48, 5807165), (52, 5360460), (56, 4977570), (60, 4645732), (65, 4288368), (70, 3982056), (78, 3573640), (80, 3484299), (84, 3318380), (91, 3063120), (104, 2680230), (105, 2654704), (112, 2488785), (120, 2322866), (130, 2144184), (140, 1991028), (156, 1786820), (168, 1659190), (182, 1531560), (195, 1429456), (208, 1340115), (210, 1327352), (240, 1161433), (260, 1072092), (273, 1021040), (280, 995514), (312, 893410), (336, 829595), (364, 765780), (390, 714728), (420, 663676), (455, 612624), (520, 536046), (546, 510520), (560, 497757), (624, 446705), (728, 382890), (780, 357364), (840, 331838), (910, 306312), (1040, 268023), (1092, 255260), (1365, 204208), (1456, 191445), (1560, 178682), (1680, 165919), (1820, 153156), (2184, 127630), (2730, 102104), (3120, 89341), (3640, 76578), (4368, 63815), (5460, 51052), (7280, 38289), (10920, 25526), (12763, 21840)]